Simms Men's Merino Thermal OTC Sock Size:M The narrow spool prevents line

The narrow spool prevents line barreling

visibility and reliability to your fly storage

and classic styling

insulating any heat generated by friction and dampening vibrations for the smoothest perceived drag on the market

Integrated Poly Curve (IPC) mandrel technology

Simms Men's Merino Thermal OTC Sock Size:M The narrow spool prevents lineHeavyweight, hardworking Merino wool over the calf sock. Features: Naturally wicking and odor resistant Reinforced midfoot support Reinforced heel and toe Over the calf height Made in USA Machine wash & dry. See garment label for details. FABRIC TECH: 81% merino wool, 18% nylon, 1% Lycra spandex