Saturday, 4 April 2020 | Peter
I like the SEMPERFLI - FLY TYING FLOSS - FL. CHARTREUSE, colour is very good. At 400 Denier it is strong, it will lay flat, or twisted it will bulk up. It can also be split to produce a finer floss for smaller flies. In the light of my UV Torch, it fluoresces very well, even from 3 to 4 yards away.