Water Shed Treated. Perfect for posts and Wing material on dry flies!
If you tie dry flies this material will be your friend. It comes out of the bag in pre-sorted strands so you can just pull a strand off and tie it in. It will tie down with almost no build up or bulk so your flies stay incredibly thin as the naturals are. It doesn't absorb water and you can easily see it.
I (Ethan) use this often on patterns like Elk Hair Caddis as well to add a hi-vis tag on top of the deer hair so I have double the chance of seeing the dry fly even across the river.