Moisture Wicking: Protects when wet and reduces moisture absorption and retention with THORWICK Cool fibers Flow-Thru Venting: Ventilation panels in toe and instep with ankle/foot transition gusset to fight wrinkling Dirt Shield: Quarter-length with reinforced top to help keep dirt and debris out Strategic Support: Form fit with compression-grade ankle and arch support protects plantar fascia, fights fatigue and prevents bunching and twisting Impact Protection: Light density padding in ball and heel protects weight-bearing areas PRODUCT DETAILS: Length: Quarter Cushion: Thin Cushion< Fiber Contents: 72% THOR WICK COOL, 22% Nylon, 5% Elastic, 1% Polyester Care instructions: For longer product life, maximum protection and comfort, wash and dry inside out (to fluff up the pads) using liquid fabric softener after each use (to lubricate the fibers for longer life). For optimal benefits, liquid fabric softeners are always recommended. Do Not Bleach. Wash Normal: 105F/40C. Dry Normal Medium. Do Not Dry Clean. Do Not Iron.