Simply Underwear

Engineered for hiking in all seasons on varied trail surfaces Product Features: Thorlon Acrylic for bulk, durability and wicking Lace pad to protect against boot pressure Flat-knit ventilation panel enhances wicking action Mid-weight padding to protect against shock, impact and blisters Sizing: Medium fits Men shoe size 5.5-8.5, Ladies shoe size 6.5-10 Large fits Men shoe size 9-12.5, Ladies shoe size 10.5-13 XL Fits Men shoe size 13-15