OS1ST FS4 Plantar Fasciitis Socks No Show size-xlarge-regular Lug sole delivers ultimate traction

Lug sole delivers ultimate traction

Incredibly durable

Material:¬71% Polyamide (Nylon)

A shoe that will go with everything

33 inch calf circumference

OS1ST FS4 Plantar Fasciitis Socks No Show size-xlarge-regular Lug sole delivers ultimate tractionFS4 Plantar Fasciitis Compression Socks Our first ever PF sock featuring award winning, patented FS6 technology. Wearing the FS4 PF socks during runs or sports activity will aid in preventing PF symptom onset and act as an overall foot health and performance aid. With precise targeted compression levels, the FS4 features Compression Zone Technology that is designed for proper foot support and injury prevention. Add to that, soft moisture wicking