50+ Series

50+ Series Heavy Sink

Get Large Flies Deep.
A 30-foot Type 8 head sinks at 7–8 inches per second, while the intermediate running line maintains a more direct connection through the retrieve.
Water Freshwater, Saltwater
Species Gamefish
Technique Big Game
Color Black / Deep Blue
Taper Weight Forward
Line Profile Type 8 Sinking Head
Casting Character Fast and Powerful
The 50+ Series Heavy Sink features a 30-foot Type 8 sinking head that sinks at 7–8 inches per second, transitioning into an intermediate running line. Its 50-pound-plus core provides the strength needed for powerful freshwater and saltwater gamefish.
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Complete the Setup

 
 
 
Design Features
Type 8 sinking head
Fast sink rate
50-pound-plus braided core
Tropic Plus coating
Dual welded loops
Best For
Deep presentations
Large flies
Fast current
Freshwater gamefish
Saltwater gamefish
Big water
50+ Series Heavy Sink Taper Chart
Specs
Grain weights
WF10: 350 • WF11: 400 • WF12: 450 • WF12+: 500 • WF13–15: 600 • WF15+: 700
Head length
30 ft
Sink rate
7 to 8 IPS
Density
Sinking
Core
Braided Nylon Multifilament
Running line
Intermediate
Line length
100 ft
Technologies
Double Welded Loops
Double Welded Loops
Welded loops make rigging fast, easy and reliable. Cortland loops are strong, clean and durable.
Grip Set
Grip Set
Designed to give the angler a better hook set when targeting large game fish or fish with hard mouths.
FiftyPlus Core
FiftyPlus Core
A 50-pound-plus braided core delivers exceptional strength, durability and control when targeting the largest freshwater and saltwater gamefish.
Tropic Plus
Tropic Plus
Engineered for tropical conditions, Tropic Plus maintains a hard, slick finish and dependable handling in extreme heat.
Warm Temperature
Warm Temperature
Ideal use in 50–70°F temperatures.
Tropical Temperature
Tropical Temperature
Ideal use in 70+°F temperatures.
  • 5 stars: 6 (86%)
  • 4 stars: 0 (0%)
  • 3 stars: 0 (0%)
  • 2 stars: 1 (14%)
  • 1 star: 0 (0%)
C
Chris M.
Big game get-down line

Smooth, slick line that’s heavy and gets down where you need it fishing nearshore and offshore. Backed by Cortland’s incredible customer service it’s exactly what I trust in the 100’ between me and the big fish.

T
Thomas L.
New line fishing Baja for striped marlin

New line fishing Baja for striped marlin. Line casted well, peformed well while hooked up but had terribel time with line tangling on the deck, even after stretching out and letting it untwist.

R
Robert F.
Very pleased with this line!

perfect for what I needed it for!

H
Hunter A.
SUMMER MUSKY

Summer musky can be super frustrating when sink lines normally get sticky and gummy and the running line forms death knots. The 50+ sits nice on the deck and shoots well at 80 degrees. It's a bit thick in the running line, but if you've dealt with the pike/musky line or a triple density sink line in the summer, this is so much better. And it comes in grain weights that work with modern musky fly rods and two hand overheads. Problem solved.

N
Nick C.
Great line

Great offshore line

A
Armando G.
New color on an amazing fly line

This has been my go to for a bunch of big species in fresh or salt water. Easy to cast, loads easy, casts huge flies if needed and gets down very fast. Now easier to track !

D
Denny K.
Cortland

All my Cortland Lines Never disappoint and always perform as Expected,,,,You're the Best!!!!