12 filament construction enables splitting for even finer strands, allowing for detailed fly tying
17 times stronger than steel of the same diameter for maximum durability and reliability
Low specific gravity allows the thread to float on water, reducing sink rates in flies
Extremely small diameter supports intricate work such as tricos and midges without buildup
Available in multiple colors and denier sizes to suit various fly tying needs
Summarized by Shop
Semperfli's smallest Nano Silk is sized at 24/0 or 20 denier. It consists of 12 filaments and can be split for even finer strands. While this GSP is 17 times stronger than steel of the same diameter, it has a low specific gravity so it floats on water. Its extremely small diameter allows for uses requiring no build-up including tricos and