Known as the strongest fly tying thread on the market for its diameter, Semperfli Nano Silk Saltwater 100D is a GSP (gel-spun polyethylene) thread that offers an unmatched strength-to-diameter ratio. The flat profile allows for smooth, bulk-free wraps that lie flat under even delicate materials, while the 100 denier weight delivers the grip and holding power needed for large patterns, synthetic materials, and hair stacking.
Features
Material: Gel spun polyethylene (GSP)
Denier: 100D (6/0 equivalent)
Tensile Strength: ~13.1 lb breaking strength
Profile: Flat thread lays down smoothly for bulk-free tying
Spool Size: 109 yards
Color Options: Available in multiple colors for fly customization
