The Kalea delivers clean, reliable grip in a classic crew height. Featuring non-slip grip sole, supportive arch band, and crew silhouette, this sock is the hygienic alternative to bare feet. Made with certified organic cotton for comfort and performance. Non-slip grip sole Hygienic alternative to bare feet Supportive arch band Certified organic cotton 73% Organic Cotton, 14% Nylon, 7% Elastane and 6% Polyester Care Instructions: Machine washable. Wash inside out in gentle cycle. Line dry or low heat in dryer. Do not bleach or iron.