Steve Burke's Salmon and Steelhead Fly-Tying Guide
Caddis Nymph

Caddis Nymph
Name Caddis Nymph
Category Steelhead / Trout
Hook Size 8 - 18, Weighted
Thread Brown
BodyLatex Strip, Wound and Overlapped to Form Segmented Body, Tinted Olive with a Permanent Marker
Thorax Brown Rabbit Fur With Guard Hairs

The body for this natural looking caddis nymph imitation is made with latex strips. The latex comes in sheets of different thicknesses which can be cut into strips for tying. It also makes great segmented bodies for stonefly and other nymphs. It's been around for years but one place that you can purchase it at is Hook and Hackle.