This is great thread for tying your winter dries, midge larva and pupae, and any small nymphs or dries for your local river. This thread only comes in white but it takes markers really well. Fine thread like this helps avoid thread build up on your flies. .

Existing threads are often too bulky for tiers who work with hooks smaller than size 20. UNI Products, the leader in innovative spooled materials, comes to the rescue with their 17/0 Trico thread. This extra-fine, white, polyester thread, is amazingly strong for its diameter. Perfect for caenis, trico, tiny baetis, and micro-caddis patterns. UNI Trico (17/0) is available on 200 yard spools.