- “Supplying fine threads to fishermen around the world for over 10 years.”
- YLI Japanese Silk Thread
- - 100 wt (3/0) Spools
- - 50wt Size 'A' Spools
- - Silk Sparkle
- - 100 wt Variegated
- - 100 wt (3/0) Cones
- - Image Gallery
- Pearsall's Silk Thread - Floss
- - Gossamer Silk
- - Naples Silk
- - Pearsall's Marabou
Silk Floss - - Spool Storage
- Alec Jackson Silk Floss
- - Alec Jackson's
Japanese Silk Floss
YLI silk rod wrapping thread.
50 weight Size A on 100 meter spools

The 50 wt Size A thread is heavier than the 100 wt YLI silk thread. This thread is 100% Filament thread from Japan giving it superior strength and a smoother more vibrant finish that spun threads. Thread Size Comparison Chart.
Excellent for rod wrapping classic bamboo fly rods. Japanese silks have long been recognized as the finest in the industry.
YLI winds many of the 50wt spools at their base in South Carolina. The other colors are directly sourced in Japan and known as Kanagawa silk, which is same thread, just different spool types.
A word about color names and numbers.
The thread names below are the primary color name with the secondary color name cross referenced from the Thread Color Chart in the Bamboo Rod Restoration Handbook by Michael Sinclair, where applicable, e.g. #078 (Antique Gold).
Click on the images below to see larger pictures and more information.
*Actual spool dimensions are listed on the individual pages.





































