Fit and Design: Light weight flat knit Elastic Arch Inside silicone stamp to prevent slippage Double Y heel Technology: Antimicrobial technology offers order-free freshness Additional Details: Machine wash cold Use only non-chlorine bleach as needed Tumble dry low Do not iron Country of Origin : Imported Style : RCS769MUSAS03PR, RCS769MUSBK13PR Fabric : 78% Cotton 19% Polyester 3% Spandex Brand : Columbia Web ID: 21CMBMMNSPFGLNRMLAPA SKU: 22566884