1 Outdoor Footwear Brand Repreve moisture wicking yarn transforms recycled bottles into an amazing fiber that is ultra-comfy, reliable, and has durable quality Friction-reducing yarn technology in the heel and toe to add strength and durability while preventing blisters Moisture management and anti-odor technologies keep feet dry and fresh For best results: Wash inside out. Machine wash cold with like colors, gentle cycle. Do not bleach. Tumble dry low. Do not iron. Do not dry clean.