Hareline Life Flex

The Material That Refuses to Sit Still

Life Flex is what happens when spandex decides to become a fly tying material. This oval-shaped synthetic wiggles, undulates, and generally refuses to stay motionless in the water—which is exactly what you want when you're trying to convince fish that your fly is alive and worth eating.

Why It Works

The secret is in the shape and stretch. Life Flex's oval profile creates natural movement with even the slightest current, making legs that pulse and bodies that breathe. Unlike round materials that just sit there looking pretty, Life Flex has an attitude problem—it wants to move, and it's going to whether the water cooperates or not.

Perfect For Tying

• Nymph Legs: Stoneflies, mayflies, and caddis larvae with legs that actually look alive
• Dry Fly Bodies: Wound as a substitute for floss, creating segmented bodies with subtle movement
• Emerger Patterns: Bodies that suggest the struggle of an insect breaking free
• Damselfly Nymphs: Tails and bodies that wiggle like the real thing
• Scud & Sowbug Patterns: Legs that move independently and drive trout crazy
• Hopper Legs: Terrestrial patterns with lifelike appendages

Versatility Bonus

Use it as legs for maximum wiggle, or wrap it as a body material for a smooth, segmented look with built-in movement. Either way, you're adding life to your flies that static materials simply can't match.

Pro tip: A little stretch goes a long way. Don't pull it too tight when tying in—let it maintain some elasticity so it can do its wiggling thing in the water.

Available in colors that cover everything from natural to "I dare fish to ignore this."