Textreme UV Body Fly 0.37mm is an innovative ultraviolet flat film, reinforced with ultra-fine double nylon backing for added strength. It is particularly suitable for mounting nymph bodies and drowned flies, but can also be used to create various parts of modern imitations. Easy to use with a spool, it combines easily with other materials to produce an infinite range of shades and lighting effects. It can also be used on certain dry flies without dubbing or Floss thread, enabling thin, translucent bodies to be assembled. Its UV brilliance provides extra attraction, ideal for seducing trout and grayling in rivers and reservoirs alike. Recommended for a range of hooks from #8 to #20, it is just as suitable for anglers looking for robust rigs as it is for demanding fly tyers in search of finesse. Packaged in 35 m spools - 170 denier - 0.37 mm, it's a modern, solid and versatile material that's a must-have for your rigs.