Cortland fly line and reel on the water

Line Technologies

Built on more than a century of line innovation.

Technologies that shape how a line casts, handles, floats, sinks and performs on the water.

Cortland fly line in use on the water

Fly Line Technologies

Cortland fly line technologies use cores, coatings, tapers, finishes and materials to control how a line casts, handles, floats, sinks and performs in different conditions.

Double Welded Loops

Welded Loops

Connection + Rigging

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

Polyethylene

Polyethylene

Material Construction

Liquid Crystal lines are built with a blend of polyethylene compounds over a monofilament core, resulting in tough, slick-shooting floating fly lines.

X-Strong Core

X-Strong Core

Strength + Pressure

Constructed with a tight weave and high pick count for extreme durability and maximum applied pressure.

Line ID

Line ID

Identification

Laser-printed line identification provides convenient size reference directly on the line.

Shooting Technology

Shooting Technology

Slickness + Shooting

ST coating reduces friction with a glass-smooth finish designed to maintain slickness throughout the life of the line.

Grip Set

Grip Set

Hook-Setting Power

Designed to give anglers a better hook set when targeting large game fish or species with hard mouths.

Heat-Tempered Surface Treatment

Heat-Tempered Surface Treatment

Low-Friction Finish

A treatment incorporating slickness additives that helps seal out dirt and oils while maintaining low friction.

High Float Tip Technology

High Float Tip Technology

Floatation + Presentation

A proprietary blend of materials designed to keep fly line tips and leaders floating high in complex currents.

Cold Salt Technology

Cold Salt Technology

Cold Saltwater Handling

A supple, durable saltwater coating designed to remain manageable and memory-free in cold conditions.

Tungsten Tip Technology

Tungsten Tip Technology

Sink Control

Premium tungsten material combined with specialized tapers for fast-sinking presentations.

Reinforced Tungsten

Reinforced Tungsten

Sink Rate + Durability

An improved premium tungsten blend designed for extended durability and fast-sinking performance.

Cold Temperature

Cold Temperature

Cold Weather Handling

Designed for use in approximately 30–50°F conditions.

Warm Temperature

Warm Temperature

Warm Weather Handling

Designed for use in approximately 50–70°F conditions.

Tropical Temperature

Tropical Temperature

Tropical Performance

Designed for use in temperatures of approximately 70°F and above.

Top Secret

Top Secret

Leader Material

Highly abrasion-resistant, supple material designed for strong knots while remaining virtually clear underwater.

Braided Line Technologies

Cortland’s work with braid dates back to Ray Smith’s 1932 patent for braided fishing line. Today, fiber choice, carrier construction, coatings and finishes are used to balance strength, sensitivity, handling and durability across modern braided lines.

Angler fighting a fish with a loaded rod and Cortland line under pressure
FiberTech

FiberTech

Handling + Castability

Protection that bonds to the individual fibers, improving handling and castability while helping the line last longer without excess stiffness.

ColorLast

ColorLast

Color Retention

Designed for long-lasting color that resists fading and bleeding.

Silent Technology

Silent Technology

Noise Reduction

Hollow 16-carrier braid reduces noise and vibration for a quieter presentation.

HMWPE

HMWPE

Strength + Sensitivity

High molecular weight gel-spun polyethylene fibers provide high strength with virtually no stretch for increased sensitivity and UV resistance.

Opti-Con

Opti-Con

Strength-to-Diameter

Optimized braid construction designed to minimize line diameter while maintaining strength and durability across each pound test.

Guide Protection

Guide Protection

Guide Performance

Proprietary construction that lays flat and helps protect rod guides from damage.

Punch Through

Punch Through

Heavy Cover Performance

Designed to punch through heavy cover with ease.