The North Face TNF Trucker Size Free Cap, Unisex, Black, 2,

Thin, high-performance running socks made from environmentally friendly materials Polygiene Biostatic treatment (antibacterial and deodorizing treatment using silver ions) The sweat-wicking, quick-drying fabric and the breathable mesh knitting around the toes reduce stuffiness while running. The arch support structure, ribbed knit design for a better fit around the ankle, and thread at the collar to reduce slippage help support a comfortable run. Sizes: XS (21-23cm), S (23-25cm), M (25-27cm), L (27-29cm)