OS1ST FS4+ Compression Bracing Socks Merino 66% mercerized Pima cotton/4% polyester/29%

66% mercerized Pima cotton/4% polyester/29% nylon/1% Lycra® spandex

Athletes don’t let the time of day effect their training

making your legs feel stronger and lighter

It is designed to move as you move with stay-in-place construction

OS1ST FS4+ Compression Bracing Socks Merino 66% mercerized Pima cotton/4% polyester/29%FS4+ Compression Bracing Socks The FS4+ Compression Bracing Socks is a new expansion of our Socks with PurposeTM program. Designed as an all in one performance running and recovery sock, our FS4+ socks provide relief for ankle swelling, varicose veins, Plantar Fasciitis, Achilles tendonitis, heel and arch pain and shin splints while also improving recovery. Our proprietary design infused with award winning, patented FS6technology makes these socks a