Catgut Biothread

We have the pleasure to offer you one of the best fly tying materials for tying nymphs!! Catgut Biothread. This fantastic fly tying material has an opacity aspect when it's dry and when it get's wet it become's milky translucent. When it’s dry the material is stiff and a little bit difficult to work with so we recommend that it should be used wet! For that, you should keep the material in warm water for 3-5 min. The color will change from opaque to milky transparent color.

Hook size:
L - size 8-10
M - size 12-14
S - size 16-18