This fibre is a perfect blend of our Slinky Fibre and Slinky Blend range with a fine "Angel Hair" flash. The BLEEDING colours incorperate a red and wisteria colour flash. The MIDNIGHT,VIOLET NIGHT, PEACOCK and HERRING BACK have a wisteria (dark blue/green). The rest of the colours have a pearl colour flash blended in. This product was developed by renowned USA tyer, Steve Farrar. This product is unique in the fact that it is already tapered and you can tie a fly using only the SF Blend.