• Mesh upper for ultimate airflow.• Classic double-over cuff never falls down.• Off-beat, original designs only SockGuy can provide!• Double-stitched nylon heel & toe for durability and longevity.• Unique Stretch-to-Fit sizing system for a PERFECT FIT on a wide-range of foot sizes.• Ultra-wicking acrylic base with superior softness and stretch to eliminate hot spots and blisters.