GSP Thread

GSP (Gel Spun Polyethylene) is an incredibly strong thread used for bigger streamers, bass bugs and foam patterns

SemperFli Nano Silk Ultra Fine 30D 18/0 - Ultra strong and ultra fine GSP. Ideal in situations where strength and minimal bulk are necessary. Very slick. Split-thread technique can be used with this thread. Ceramic bobbin recommended. 50 yd spool.

SemperFli Nano Silk Ultra Fine 50D 12/0 - Ultra strong and ultra fine GSP. Ideal in situations where strength and minimal bulk are necessary. Very slick. Split-thread technique can be used with this thread. Ceramic bobbin recommended. 50 yd spool.

Ultra-Strong GSP (Gel Spun Polyethylene). Great if you have issues breaking thread due to too much tension or if you have bugs you really wanna crank on, like deer hair head bugs. It ties flat for low bulk. The higher denier you go, the stronger the thread will be.