This product’s journey from last year’s mediocre performance to today’s standout capability demonstrates the importance of sinking line design. Having tested dozens, I can tell you that the SF WF5S Full Sinking Fly Line 90FT impressed me with its quick sink rate (IPS3/IPS5) and smooth casting. The PVC coating and braided core give it durability and speed, especially in tight streamers or stillwater setups. The welded loops at each end make knotting and leader attachment effortless, a real time-saver. Its thin diameter cuts through wind, giving precise control, even in challenging conditions.
After comparing this line with RIO’s Avid Series and other brands, I found the SF line offers better sink rates and a more consistent, easy-to-control cast. While the RIO lines excel in versatility, they lack the specific sink rate for targeted streamer fishing that the SF line provides. For anglers seeking reliable sink speed and ease of use in a full sinking line, I strongly recommend the SF WF5S Full Sinking Fly Line. It’s a true game-changer for your fishing setup.
Top Recommendation: SF WF5S Full Sinking Fly Line 90FT
Why We Recommend It: This line outshines competitors with its high-quality PVC coating and braided core, offering a fast sinking rate (IPS3/IPS5) that effectively submerges flies in various water conditions. The welded loops make rigging simple, and its thin diameter allows for smooth, wind-cutting casts. Compared to RIO’s options, it provides superior sinking speed specifically for streamers and stillwater, making it ideal for precision, control, and performance.
Best sinking fly line: Our Top 5 Picks
- SF WF5S Full Sinking Fly Line 90FT – Best full sink fly line
- SF Sinking Fly Line WF9S 90FT – Best sinking fly line for high sinking needs
- RIO Avid Series 24ft Sinking Tip Fly Line 300gr – Best sink tip fly line
- Rio Mainstream Type 6 WF5S Sinking Fly Line Black – Best sinking fishing line
- Aventik Sinking Tip Fly Line 100FT IPS 5-6, Welded Loop – Best Value
SF WF5S Full Sinking Fly Line 90FT
- ✓ Smooth casting and sinking
- ✓ Durable PVC braided core
- ✓ Easy knot tying with welded loops
- ✕ Slightly stiff at low temperatures
- ✕ Less effective in super windy conditions
| Material | PVC coating with braided core |
| Sinking Rate | IPS3/IPS5 (faster sinking rates) |
| Line Length | 90 feet |
| Line Diameter | Thin diameter (specific measurement not provided) |
| Line Features | Welded loops at each end for easy knot tying and leader attachment |
| Intended Use | Effective for streamers, suitable for stillwater fishing, ideal for beginners and experienced anglers |
Imagine you’re wading into a quiet, shaded stream early in the morning, your rod in hand and the air still cool. You flick out this SF WF5S Full Sinking Fly Line, and instantly, you notice how smoothly it unrolls off the spool, even in a light breeze.
The thin diameter cuts through wind effortlessly, giving you precise control over your cast. With its mid-length head, you feel confident in your line management, especially when casting streamers deep into the water.
The welded loops at each end make attaching your leader quick and hassle-free, saving you time and frustration.
What really stands out is how well it sinks. Whether you’re aiming for a slow, steady descent or a more aggressive IPS5 rate, this line performs consistently.
It sinks well without any weird tangles or snags, which is a relief when you’re focusing on your presentation and not fighting your gear.
Handling this line feels solid, and the PVC coating plus braided core give it durability and a good feel in your hand. It’s especially handy for stillwater fishing, where you need that reliable sink to get your flies down to the fish.
Whether you’re a beginner or a seasoned angler, this line offers versatility and ease of use.
The included spool is a nice touch, making storage and setup straightforward. Overall, it enhances your fishing experience by making sinker control easier and more precise, helping you cover water effectively.
SF Sinking Fly Line WF9S 90FT
- ✓ Excellent sinking speed
- ✓ Easy to cast in wind
- ✓ Strong welded loops
- ✕ Slightly stiff at first
- ✕ Needs careful storage
| Material | PVC coating with braided core |
| Sinking Rate | IPS5 (faster sinking rate) |
| Line Length | 90 feet |
| Line Diameter | Thin diameter (specific measurement not provided) |
| Line Features | Welded loops at each end for easy knotting and leader attachment |
| Intended Use | Effective for streamers, suitable for stillwater fishing, ideal for both beginners and experienced anglers |
There’s nothing more frustrating than battling wind and stubborn floating lines that refuse to get deep enough where the fish are hiding. I was skeptical about how well a sinking line could actually improve my chances—until I tried the SF Sinking Fly Line WF9S 90FT.
The first thing I noticed was how easily it shot through the guides. The thin diameter cuts through wind effortlessly, which makes casting much smoother, even with a bit of a breeze.
The mid-length head offers great control, so I could precisely place my streamer right where I wanted.
The PVC coating and braided core give it a sturdy, high-quality feel. It sinks quickly (IPS5), so I didn’t have to wait long for the line to get down to the fish.
Plus, the welded loops at both ends made tying knots a breeze, saving me time and frustration.
Using this line on a calm lake or a flowing stream, I noticed better depth control and fewer hang-ups. It’s especially effective for streamer fishing and perfect for stillwater situations.
Whether you’re a beginner or a seasoned angler, this line delivers reliable performance and easy handling.
Overall, it’s a versatile sinking line that truly solves the problem of slow, floating lines in deeper waters. It’s well-made, efficient, and makes fishing more enjoyable—no more battling the line, just more catching.
RIO Avid Series 24ft Sinking Tip Fly Line 300gr
- ✓ Easy distance casting
- ✓ Supple, memory-free core
- ✓ Excellent sink rate
- ✕ Slightly heavier head
- ✕ May feel stiff for some
| Line Length | 24 feet |
| Sinking Tip Length | 24 feet |
| Grain Weights | 150gr to 350gr |
| Recommended Rod Weights | 5wt to 9wt |
| Core Type | Supple, memory-free core |
| Coating Technology | Super slick coating |
The moment I unraveled the RIO Avid Series 24ft Sinking Tip Fly Line and felt its supple, memory-free core, I knew this line was built for serious fishing. The super slick coating instantly caught my attention, promising smooth casts and easy distance, which I immediately tested out by flicking it over a handful of targets.
The slightly shorter, heavier head made mending and casting into tight spots feel effortless, as if the line practically did the work for me.
What really stood out was how quickly I could get the line out into the water with minimal effort. The 24-foot sink tip sank quickly and held steady, perfect for deep water or fast-moving currents where precise placement matters.
I appreciated that the tapers were designed with the avid fly fisher in mind—delivering both power and finesse, depending on what I needed in the moment.
Handling the line felt comfortable, even after hours on the water. It laid down smoothly, with no tangles or memory issues, which is a huge plus during those long fishing sessions.
The construction feels durable, yet flexible enough to handle different casting styles. I used it with an 8wt rod, and the weight matched perfectly, providing consistent, reliable performance.
Overall, this line offers a solid combination of technology and craftsmanship. Whether you’re targeting deep structures or trying to reach distant feeding fish, it performs reliably.
It’s a smart choice for anglers who want a sinking line that’s easy to cast, durable, and designed for serious water action.
Rio Mainstream Type 6 WF5S Sinking Fly Line Black
- ✓ Quick sinking rate
- ✓ Easy to cast
- ✓ Short, powerful head
- ✕ Not ideal for surface fishing
- ✕ Limited versatility for shallow water
| Line Type | Full Sinking Fly Line, Type 6 |
| Sink Rate | 6 inches per second |
| Head Length | Short, optimized for easy casting and presentation |
| Material | Specialized textured nylon coating for durability and performance |
| Intended Use | Freshwater trout fishing |
| Color | Black |
Imagine you’re wading through a quiet stream, a gentle current pushing you along as you try to coax a wary trout from its hiding spot. Your line slices smoothly through the air, and then you notice the sink rate of your fly line kicking in—rapidly pulling your fly down into the strike zone.
This is where the Rio Mainstream Type 6 WF5S Sinking Fly Line really shines. Its full sink design at 6 inches per second gets your fly deep fast, making it perfect for those deeper pools or when fish are hanging tight near the bottom.
The line’s build feels solid yet manageable. The slightly heavier, shorter head helps with quick, accurate casts, especially in tight spaces or when you need to make short, powerful presentations.
The short front taper makes turnover smooth, so your fly lands softly without spooking the fish.
Handling it on the water, I appreciated how easy it was to cast in various conditions. The line’s design helps you cut through wind and choppy water, which is a real plus for freshwater fishing.
It’s a versatile choice for anglers who want reliable depth control without fuss.
One thing to note: because it sinks so quickly, it’s best suited for specific scenarios. If you’re targeting fish near the bottom or fishing in deep water, this line will help you get down fast.
But for surface or shallow water fishing, you might want a floating or intermediate line instead.
Overall, the Rio Mainstream Type 6 is a dependable, well-made sinking line that makes deep-water fishing straightforward and effective. It’s a smart choice for anglers looking to improve their sink rate and presentation in the water.
Aventik Sinking Tip Fly Line 100FT IPS 5-6, Welded Loop
- ✓ Easy to rig and handle
- ✓ Seamless transition from sink to float
- ✓ High sensitivity for better hookups
- ✕ Slightly thicker body section
- ✕ Less suitable for very heavy wind
| Line Length | 100 feet (30.48 meters) |
| Sinking Portion | First 15 feet sinking, remaining 85 feet floating |
| Core Material | Braided core with PVC coating |
| IPS Rating | 5-6 |
| Special Features | Welded loop on front end, balanced casting design, precision core technology with minimal stretch |
| Color Coding | Green end for backing line, black end for sink tip |
Many folks assume that a sinking fly line is just a heavier version of a floating line, but this Aventik Sinking Tip Line proved otherwise right from the first cast. The moment I unraveled it, I noticed how the welded loop felt sturdy yet flexible, making rigging a breeze without extra tools.
The first 15 feet sinking segment worked like a charm, pulling my fly down smoothly without any snags or abrupt dips. The transition to the floating section was seamless, helping me maintain control and precision in different water depths.
The unique, slightly fatter body section really does eliminate that “kick” you often get with traditional lines, giving me a more balanced and consistent cast.
Handling the line was surprisingly smooth, thanks to the special surface coating. It felt slick, yet not overly slippery, which meant fewer tangles and better accuracy.
The braided core with precision technology gave me excellent sensitivity— I could feel every nibble and bump on the line, making hookups more reliable.
Rigging was straightforward with the welded loop, and I appreciated how the green and black ends made it easy to identify the backing and sink tip. It’s built for anglers who want a reliable, balanced rig that performs well in different conditions.
Overall, this line offers impressive control and sensitivity, making it a real game-changer for sinking tip scenarios.
What Is a Sinking Fly Line and How Does It Work?
Solutions for selecting the best sinking fly line involve considering several factors including the specific species being targeted, the type of water being fished, and personal casting style. Best practices include matching the sink rate to the conditions of the water and experimenting with different line types to find what works best for individual fishing scenarios. Additionally, maintaining the line by cleaning and storing it properly can extend its lifespan and performance, maximizing the investment made in quality gear.
What Are the Different Types of Sinking Fly Lines and What Are Their Uses?
The different types of sinking fly lines are designed to meet various fishing conditions and target specific species.
- Type I Sinking Lines: These lines sink at a rate of approximately 1 to 2 inches per second, making them ideal for fishing in shallow waters or when targeting fish that are holding close to the surface.
- Type II Sinking Lines: Sinking at a rate of about 2 to 3 inches per second, Type II lines are versatile for fishing both shallow and moderately deep waters, often used when fish are slightly deeper than the surface.
- Type III Sinking Lines: With a sink rate of 3 to 4 inches per second, these lines are suitable for deeper water fishing and can effectively reach fish that are positioned in the mid-water column.
- Type IV Sinking Lines: These lines sink at a rate of 4 to 5 inches per second, making them great for targeting fish in deeper waters, especially in lakes and rivers where fish tend to hold near the bottom.
- Type V Sinking Lines: With a sink rate of 5 to 6 inches per second, Type V lines are optimal for very deep conditions and are commonly used for fishing in heavy currents or deep lakes.
- Type VI Sinking Lines: These lines sink at over 6 inches per second, providing anglers with the capability to reach the deepest depths quickly, ideal for targeting species that dwell on the bottom.
- Shooting Heads: This type consists of a short, heavy sinking section attached to a lighter running line, allowing for long casts and great distance. They are particularly useful for specific techniques like stripers and saltwater species.
- Intermediate Sinking Lines: These lines have a slow sink rate, typically around 1 inch per second, and are perfect for fishing in transitional areas where the depth changes frequently, allowing for effective presentations at various depths.
How Do Weight Forward Sinking Fly Lines Perform Compared to Full Sinking Lines?
| Aspect | Weight Forward Sinking Lines | Full Sinking Lines |
|---|---|---|
| Performance | Offers a quick entry into the water and better control in varying depths. | Generally sinks faster and allows for deeper fishing but can be harder to control. |
| Use Cases | Best for targeting fish in mid-depths or when quick retrieval is needed. | Ideal for deep water fishing where fish are located at the bottom. |
| Casting Ease | Easy to cast due to the weight distribution, making it beginner-friendly. | Requires more skill to cast effectively because of the heavier line weight. |
| Price | Typically more affordable, catering to a wider range of anglers. | Usually more expensive, reflecting the specialized design for deep fishing. |
| Water Types | Suitable for both freshwater and saltwater fishing. | Primarily used in freshwater but can also be used in saltwater with proper care. |
| Line Material | Often made from PVC, providing good buoyancy. | Typically constructed from coated materials to ensure durability and weight. |
| Best Brands | Popular brands include Scientific Anglers and Rio. | Well-regarded options include Airflo and Orvis. |
| Weight Classes | Available in various weight classes for different rod setups. | Also available in multiple weight classes, tailored for specific fishing conditions. |
| Durability | Generally durable but may wear more quickly in saltwater. | Designed for high durability, particularly in rugged environments. |
What Factors Should You Consider When Selecting a Sinking Fly Line?
When selecting the best sinking fly line, several key factors should be considered to ensure optimal performance and success in your fishing endeavors.
- Line Density: The density of the sinking fly line determines how quickly it sinks and its ability to reach the desired depth. There are three main types of density: floating, intermediate, and full sinking, each serving different fishing conditions and species.
- Sink Rate: Sink rate refers to how quickly the line descends through the water column, typically measured in inches per second (IPS). Choosing the right sink rate helps you to effectively target fish at specific depths, depending on where they are feeding.
- Weight and Grain Size: The weight of the fly line, often measured in grains, influences casting performance and the ability to turn over heavy flies. Selecting the appropriate grain size is crucial for matching the line to the rod and ensuring effective presentations.
- Line Taper: The taper of the fly line affects its casting properties and presentation. Different tapers, such as weight-forward or double taper, can enhance casting distance and accuracy, depending on the fishing techniques and conditions you encounter.
- Material and Coating: The material and coating of the sinking fly line impact its durability and performance in various water conditions. A good quality coating can enhance the line’s resistance to abrasion, UV damage, and water absorption, ensuring longevity and reliability.
- Visibility: The visibility of the fly line can be a critical factor, especially in clear waters where fish may be line-shy. Opting for a line with contrasting colors can help you track your line easily while not spooking fish in the process.
- Price Point: Budget is an important consideration when selecting a sinking fly line, as prices can vary significantly. It’s essential to balance cost with quality, as investing in a higher-quality line can lead to better performance and durability over time.
How Does Line Weight Affect Performance and Casting?
Line weight plays a crucial role in the performance and casting of sinking fly lines, influencing how they behave in the water and how effectively they can be cast.
- Weight Forward Design: This design features a heavier front section that helps in casting longer distances with ease. The weight forward taper allows for more energy transfer during the cast, which is particularly beneficial in windy conditions or when targeting distant fish.
- Line Density: The density of the line affects how quickly it sinks. Higher density lines sink faster, allowing anglers to reach deeper water more efficiently, which is essential for targeting species that feed at various depths.
- Line Diameter: A thicker line generally has more surface area and can create more drag in the water, impacting casting distance and accuracy. Conversely, a thinner line reduces drag but may be less durable, affecting performance over time.
- Sink Rate: Different sinking lines have varied sink rates, which influence how quickly they can get to the desired depth. Understanding sink rates helps anglers select the right line for specific fishing conditions and species.
- Feedback and Feel: The weight of the line provides feedback through the rod, allowing anglers to detect strikes more effectively. A properly weighted line enhances the overall feel and responsiveness during casting and retrieving, making it easier to manage the fly presentation.
What Materials Enhance the Durability and Efficiency of Sinking Fly Lines?
Several materials contribute to the durability and efficiency of sinking fly lines:
- Polyvinyl Chloride (PVC): PVC is often used in the outer coating of sinking fly lines for its excellent water resistance and durability. Its ability to withstand abrasions and UV rays makes it ideal for various aquatic environments, ensuring that the line lasts longer in harsh conditions.
- Polyurethane (PU): This material is known for its flexibility and durability, allowing sinking lines to maintain their performance in cold water conditions. PU coatings also provide a smoother surface, which helps in casting and reduces drag when retrieving the line.
- Lead Core: Many sinking fly lines incorporate a lead core to provide the necessary weight for sinking. This core helps the line to sink quickly and maintain its depth, making it effective for targeting fish at various levels in the water column.
- Advanced Coating Technologies: Some manufacturers utilize advanced coating technologies that provide enhanced floatation properties and improved line handling. These coatings can help reduce line memory and tangling, which are common issues that affect the efficiency of sinking lines.
- Micro-Diameter Construction: Lines designed with a micro-diameter profile allow for better penetration through the water. This design minimizes resistance and enhances sensitivity, enabling anglers to detect strikes more effectively while also improving casting distance.
What Features Should You Look for in the Best Sinking Fly Line?
When selecting the best sinking fly line, several key features should be considered to ensure optimal performance and suitability for your fishing needs.
- Sink Rate: The sink rate determines how quickly the line descends in water, and it usually varies from slow to fast sinking options. A faster sink rate is ideal for reaching deeper waters quickly, while a slower rate is better for fishing in shallower areas or when targeting fish holding near the surface.
- Line Weight: Matching the line weight to your rod and the type of fishing you’re doing is crucial for effective casting and presentation. Lines are available in various weights, and selecting the correct one will enhance casting distance and accuracy, making it easier to reach your target species.
- Material and Coating: The material and coating of the fly line affect its durability, flexibility, and performance in various conditions. High-quality PVC or polyurethane coatings can provide better resistance to abrasions and water absorption, ensuring your line performs well in different environments.
- Line Profile: The taper and profile of the line can influence casting ease and the ability to present flies delicately. A weight-forward taper is often preferred for sinking lines as it helps in loading the rod during the cast, while a double taper can provide versatility in presentation.
- Visibility: A highly visible line can aid in tracking your casts and detecting strikes, especially in low-light conditions. Many anglers prefer bright colors for better visibility, while some opt for more natural colors to avoid spooking fish in clear waters.
- Looped Ends: Looped ends on a sinking fly line facilitate easy attachment of leaders and backing, making setup quicker and more efficient. This feature can also allow for smoother casting and better overall performance during retrieves.
How Can a Sinking Fly Line Improve Your Fishing Success?
The best sinking fly line can significantly enhance your fishing success by allowing you to reach deeper waters and present your flies at optimal depths.
- Depth Control: Sinking fly lines are designed to sink at various rates, enabling anglers to control how deep their flies dive. This is especially useful in situations where fish are holding at specific depths, such as in lakes or rivers with varying water levels.
- Improved Presentation: With a sinking line, the fly can mimic the natural behavior of aquatic insects or baitfish that are found below the surface. This more realistic presentation can entice fish that are less likely to strike at flies on the surface.
- Versatility in Water Conditions: Sinking fly lines are effective in various water conditions, including fast currents or deep pools. They allow anglers to fish effectively in environments where floating lines would struggle to maintain contact with the intended target area.
- Increased Casting Distance: The weight of sinking lines often aids in casting by allowing for longer distances. Anglers can use heavier tips to make longer casts, which is beneficial for reaching fish that are further away from the bank or boat.
- Targeting Specific Species: Many fish species, such as trout and bass, tend to feed at certain depths depending on the time of year and time of day. A sinking fly line enables anglers to effectively target these species by presenting flies at the appropriate depth where they are actively feeding.
What Are the Top Recommended Brands for Sinking Fly Lines?
The top recommended brands for sinking fly lines are:
- Rio Products: Known for their innovative fly line technologies, Rio Products offers a range of sinking fly lines designed for various fishing conditions. Their lines often feature advanced tapers and coatings that enhance casting performance and durability, making them ideal for targeting specific species in freshwater and saltwater environments.
- Scientific Anglers: This brand is recognized for its high-quality fly lines that cater to both novice and experienced anglers. Their sinking lines are designed to sink quickly and maintain steady depths, ensuring that anglers can efficiently present their flies to fish at the right level, whether in still waters or fast-moving currents.
- Orvis: Orvis provides a selection of sinking fly lines that are well-regarded for their reliability and performance. Their lines often incorporate premium materials that offer low memory, allowing for better casting and less tangling, which is crucial when fishing in diverse aquatic environments.
- Airflo: Airflo is celebrated for its unique manufacturing process and innovative designs, particularly in sinking fly lines. Their lines feature a range of sink rates and are made with a super slick coating that allows for smooth shooting and reduced friction, making them popular among anglers seeking to cover more water efficiently.
- Winston: Known primarily for their fly rods, Winston also produces high-quality sinking fly lines that complement their equipment. Their sinking lines are designed to enhance the overall fishing experience, providing smooth performance and excellent sensitivity, allowing anglers to feel even the slightest nibble.