Streamer Sink Tip 10

Streamer Sink Tip 10 is built with an aggressive short taper design that features a 10ft type 6 sinking tip (6 Inches Per Second). The over-weighted head loads rods quick and easily casts all streamer patterns. Our Tungsten Tip Technology ensures your flies get down immediately.

- 10ft Type 6 Sink Tip
- Short Aggressive Taper
- Floating Running line

WATER: Freshwater
LINE: Floating / Sinking
TAPER: Weight Forward
LENGTH: 100ft
CORE: Braided Nylon Multifilament
SPECIES: Trout / Steelhead / Salmon / Bass

Color BLACK / OLIVE
Size WF5S/F
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Streamer Sink Tip 10 Breakdown

The Streamer Sink Tip 10 was designed to present unweighted and weighted streamers in the middle to lower water column.

This unique sink tip fly line features an aggressive head design with a short 16 ft. body that loads quickly and shoots large fly’s with minimal false casts. The 10 ft. type 6 (5-6 IPS) sink tip utilizes our revolutionary Tungsten Tip Technology to keep your fly at a consistent depth during your retrieve.

We built this fly line a full line size heavy to properly load fast, modern action rods. A 10 ft. sink tip integrated into the head of this fly line allows for complete versatility when banging banks, working heavy currents, and fishing bigger water. Our signature Shooting Technology decreases friction within the guides for a slick shooting feel throughout its entire life span.

Keep your streamer in the strike zone with the Streamer Sink Tip 10 Fly Line.

SPECIES: Trout / Steelhead / Salmon / Bass


WATER LINE DENSITY TAPER CORE
Freshwater Sinking / Floating Weight Forward Braided Nylon Multifilament

LINE SIZE GRAIN WEIGHT HEAD LENGTH TOTAL LENGTH
WF 5 160 gr. 26 ft. 100 ft.
WF 6 185 gr. 26 ft. 100 ft.
WF 7 210 gr. 26 ft. 100 ft.
WF 8 240 gr. 26 ft. 100 ft.

Technologies

Dual Welded Loops Technology Icon
DUAL WELDED LOOPS

Welded loops make rigging fast, easy and reliable. Cortland loops are strong, secure and durable.

Shooting Technology Icon
SHOOTING TECHNOLOGY

ST coating delivers a reduced-friction performance with a glass-smooth finish and remains a key element in line slickness over its life span.

Tungsten Tip Technology Icon
TUNGSTEN TIP TECHNOLOGY

Premium Tungsten material combined with unique tapers for fast sinking presentations.

Cold Temperature Technology Icon
COLD TEMPERATURE

Ideal use in 30-50 degree (F) temperatures.

Warm Temperature Technology Icon
WARM TEMPERATURE

Ideal use in 50 - 70 degree (F) temperatures.

Fall mountain backdrop with a flowing river

Article Written by Lance Wilt. Learn More About the author below / Article Read Time: 3 Minutes Streamer fishing is an exciting and engaging way to keep the blood flowing through...

FAQ

Our Streamer Sink Tip 10 fly line is built for cold water environments and will perform best in temperatures between 30 and 70 degrees (F).

The taper design for our Streamer Sink Tip 10 fly line was built featuring an aggressive head design integrated with a 10' type 6 sink tip. We designed this line with ultimate versatility in mind. Keep your fly down in riffles and heavy current, fish your streamer low & slow during the winter, or instantly get your fly down when casting off a boat.

The black and olive color combination distinguishes the transition between sinking and floating portions of the line, and provides depth reference on your retrieve. These colors are stealthy yet traceable in freshwater environments.

Cleaning your fly line is very important especially when fishing saltwater. Simply pull line off your reel into a clean bucket or tub of freshwater. Put roughly 1oz or more of Cortland’s Line Cleaner solution onto a clean rag or towel. Firmly squeeze the towel with Pro Line Cleaner around the line and slowly pull line through the towel. You should be able to see dirt or discolored streaks on the towel when finished.

Learn more about Cortland's Fly Line Cleaner Lubricant & Pads.

average rating 5.0 out of 5
Based on 3 reviews
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100% of reviewers would recommend this product to a friend
3 Reviews
Reviewed by Dennis L.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Dennis.L

This flyline is slick and fast, The sinking tip takes your fly Is down in rough water. Hooked up on To large cohol salmon with this fly line. Got into my backing line thought I was gonna lose everything. This flyline is very strong. It's amazing. How much Punishment it can take. I like it so much.

I'm going to change my five weight to cortland.

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Reviewed by Todd H.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Great line

One of my go to streamer lines when spring comes or for any season. Cortland is always on my reels!

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Reviewed by Tim G.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Nice line

Casts great, does what it needs to do!

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Get Down to Business with the Streamer Sink Tip 10

September 15th, 2025

When you need to get big streamers deep and fast, the Streamer Sink Tip 10 is the ultimate tool for the job. Engineered for anglers who refuse to let deep water keep them from their target species, this line is designed to punch through the water column and put your fly right in the predatory strike zone. The power behind this line is its aggressive, short taper and over-weighted head. This combination works to load your fly rod with minimal effort, generating incredible line speed and turnover power to handle even the largest and most air-resistant streamer patterns. You can cast heavy, articulated flies, weighted baitfish imitations, and bulky intruders with confidence and precision. The design makes it easy to execute quick, powerful casts, whether you're working a deep channel from a drift boat or targeting submerged structure from the bank. It eliminates the frustration of casting sinking lines, allowing you to focus on your presentation and retrieve.

The defining feature of this line is its integrated 10-foot, Type 6 sinking tip. This isn't just a standard sink tip; it's enhanced with our advanced Tungsten Tip Technology. By infusing the tip with premium tungsten particles, we've created a tip that sinks at an impressive rate of 6 inches per second, ensuring your fly gets into the feeding lane immediately. This rapid descent is crucial when fishing fast currents or targeting fish holding tight to the bottom in deep pools. Following the powerful sink tip is a high-performance floating running line, providing the perfect balance for line control. You can easily manage your drift, mend the line to achieve a natural presentation, and detect subtle takes. The 100-foot weight-forward line is built on a robust braided nylon multifilament core, giving it the strength and durability to battle powerful trout, steelhead, salmon, and bass in any freshwater environment.

Reliability and advanced performance are built into every inch of the Streamer Sink Tip 10. The line features dual-welded loops on both the head and running line, making connections to leaders and backing exceptionally fast, easy, and secure. These strong, durable loops eliminate the need for time-consuming knots on the water. To ensure long-lasting performance, the line is finished with our proprietary Shooting Technology (ST) coating. This ultra-slick, glass-smooth finish reduces friction as the line flies through the guides, adding distance to your casts and protecting the line from dirt and oils that can degrade performance over time. It’s also built to perform in any climate, featuring Cold Temperature technology to remain supple and memory-free in temperatures from 30-50°F, and Warm Temperature technology to maintain its structure in conditions from 50-70°F. This line is a product of Cortland Line Company’s century-long legacy of innovation. With over 100 years of experience, we proudly manufacture all our lines in the USA, applying a level of precision that has also allowed us to develop advanced fibers for the medical and aerospace industries. Trust in Cortland for the quality and performance you need to succeed.