Streamer Sink Tip 15

Streamer Sink Tip 15 is built with an aggressive short taper design that features a 15 ft 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. Designed for larger rivers with deep and fast currents.

- 15ft 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 / GREEN
Size WF5S/F
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Streamer Sink Tip 15 Breakdown

The Streamer Sink Tip 15 was designed to present unweighted and weighted streamers in the lower water column.

This unique sink tip fly line features an aggressive head design with a short 6 ft. body that loads quickly and shoots large fly’s with minimal false casts. The 15 ft. type 6 (5-6 IPS) sink tip utilizes our revolutionary Tungsten Tip Technology to give your fly a smooth transition into the depths and keep your fly there throughout your retrieve.

We built this fly line a full line size heavy to properly load fast, modern action rods. A 15 ft. sink tip integrated into the head of this fly line allows for complete depth versatility. Work your fly fast to cover the middle water column, get down quickly in heavy currents and riffles, or fish large pools low and slow for those winter streamer bites. 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 15 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. 31 ft. 100 ft.
WF 6 185 gr. 31 ft. 100 ft.
WF 7 210 gr. 31 ft. 100 ft.
WF 8 240 gr. 31 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.

FAQ

Our Streamer Sink Tip 15 fly line is built for cold water environments and will perform best in temperatures between 30 and 70 degrees (F).

Our Streamer Sink Tip 15 fly line was designed to keep your fly deep consistently throughout your retrieve. This is a great line for working streamers off bottom on those cold winter days or getting your fly down in heavy current.

The black and green 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.

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Based on 4 reviews
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4 Reviews
Reviewed by Edward C.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Streamer Sink Tip 15

I haven’t had a chance to use this yet but will use it this fishing season in northern NH and Maine. The Androscoggin and Connecticut Rivers in NH. And the Magalloway and KennebecRivers in Maine. Also hope to fish Cape Breton Island, Nova Scotia this summer.

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Reviewed by Colten F.
Verified Reviewer
I recommend this product
Rated 5 out of 5
Review posted

Streamer Fishing Made Easy with the Cortland's Streamer Sink Tip 15 Fly Line

I bought the Cortland's Streamer Sink Tip 15 5 wt. fly line and I'm very happy with it. It sinks fast and stays in the strike zone longer, which is perfect for streamer fishing. It casts smoothly and accurately, and it doesn't coil up like some other sinking lines. It's also durable and easy to clean. I highly recommend this fly line for anyone who wants to catch big fish with streamers.

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Reviewed by Devin A.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

The best sink tip line out there!

I’ve tried every brand of fly line there is, and when it comes to sink tip nothing compares to Cortland! It’s worked wonders on bigger water for salmon and I can’t wait to head to a trophy cutthroat lake with it spooled up soon!

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Reviewed by Nick S.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Gets down fast

When the river is up and you need to get down fast this line does the trick. Handles great, casts well, and sinks like a champ. Does exactly what a streamer sink tip should.

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Streamer Sink Tip 15 Fly Line for Versatile Depth Control

December 15th, 2025

Cortland’s Streamer Sink Tip 15 is a go-to fly line for anglers who want precision depth control without sacrificing casting efficiency. Designed for targeting trout, bass, and other predators holding at intermediate depths, this line features a 15-foot Type 6 sinking tip seamlessly integrated into a floating body. That blend offers an ideal balance—letting your streamer reach the strike zone while preserving the casting feel of a floating line. Whether you’re working a river bank or probing deep pools in stillwater, this line is built for smooth presentations and confident retrieves.

The 15-foot sinking tip has a sink rate of approximately 6 inches per second, allowing flies to track naturally through varying water columns. Unlike full-sinking lines that can limit mending and line control, the floating body of the Sink Tip 15 gives you the ability to manipulate your drift, lift into the next cast easily, and stay connected during subtle eats. It’s the perfect tool when you're working structure, drop-offs, or transitional zones where fish cruise or ambush prey.

Built for Streamer Anglers Who Need Flexibility

At the heart of the Sink Tip 15 is a short, powerful head designed to load quickly with minimal false casts. This compact taper transfers energy efficiently, helping you turn over large streamers or weighted patterns—even in wind or tight quarters. It shines in conditions where you need fast access to mid-depth targets but want more versatility than a full sink line allows. Whether you're fishing from a drift boat, a kayak, or on foot, this line adapts to changing water conditions and casting angles with ease.

The integrated tip ensures a smooth transition between the sinking and floating sections, eliminating hinge points and enhancing turnover. Backed by Cortland’s low-stretch braided nylon core, the line maintains a responsive feel for better hooksets and improved strike detection. Anglers often find this setup ideal for rivers with mixed flows, where having a line that gets down quickly yet lifts cleanly can make all the difference between a follow and a committed eat.

Durable and Ready for All-Day Strip Work

Like all of Cortland’s performance-driven fly lines, the Streamer Sink Tip 15 is engineered to endure the grind of serious fishing. Built on a strong, low-stretch braided nylon core, this line offers consistent energy transfer and superior hook-setting power—an essential advantage when stripping big streamers through heavy current or across stillwater shelves. Its durable outer coating is resistant to cracking, abrasion, and cold-weather memory, ensuring dependable performance season after season.

Whether you're pounding the banks from a drift boat, exploring backcountry creeks on foot, or working deep eddies from a kayak, this line holds up to the physical and environmental abuse that comes with streamer fishing. The Sink Tip 15 shoots cleanly through guides, stays manageable even when wet, and offers the kind of reliability that gives anglers the confidence to fish longer and more aggressively.

To help streamline your setup on the water, Cortland’s subtle color transitions clearly delineate the sinking tip from the floating body—allowing for quicker depth adjustments and better tracking while your fly is submerged. Whether you're targeting post-spawn smallmouth in stained rivers or late-season brown trout in crystal-clear tailwaters, this line brings a level of control and stealth that enhances your chances of success.

When the day demands adaptability, precision, and toughness, the Streamer Sink Tip 15 delivers—making it a must-have for any angler who fishes streamers with purpose.