Uni Flexx

UNI-Flexx is a handy way to make slim nymph bodies, flexible legs and little touches of colour that stay easy to control at the vice. Its elastic strand stretches as you wind, helping it sit neatly along the hook rather than springing straight off. The 1680-denier material comes on a 15-yard spool, with plenty of useful natural and brighter shades in this range.

Key Features and Benefits for UNI-Flexx

• Stretchy 1680-denier strand suitable for nymph bodies and flexible legs.
• 15-yard spool for repeated tying sessions.
• Can be split into finer strands for smaller dressings.
• Holds its colour when wet, making bright accents more predictable.

Top Tips for UNI-Flexx

• Use controlled tension; stretching it too firmly will make a much thinner wrap than you may have intended.
• Secure the material firmly at both ends, then ease off the tension gradually before trimming.
• Split a short section into narrower strands when dressing smaller patterns rather than piling on too much material.

Fly Patterns and Uses for UNI-Flexx

• Bloodworm-style flies: wind red or orange Flexx to make a smooth, flexible-looking body.
• Nymphs and pupae: use close turns for an even abdomen with a subtly rounded profile.
• Legged attractors: short strands form flexible legs that can be tailored to the hook size.

Yes. Cut short lengths for legs on nymphs and attractors, adjusting the thickness by splitting the strand if a smaller pattern needs finer legs.

The material is made to retain its original colour when wet, which is particularly handy when you are choosing bright shades for bloodworms or hot spots.

No. UNI-Flexx is elastic and useful for tension-controlled wraps and legs. For a smooth, glossy, non-elastic body covering, try UNI-Floss.

Both materials stretch and work well for flexible buzzer and nymph bodies. UNI-Flexx is slightly wider and can be split into finer strands, handy when you need delicate legs or a slimmer wrap. For another smooth, stretchy body material, see Veniard Super Stretch Floss (Flexi-Floss). Choose according to the width and finish you want on the finished fly.