Everlis Unisex Hiking Antibacterial Mid Cushion Athletic Crew Socks Mens Womens 55% combed cotton / 20% ATB100 antiodor-antibial silver yarn / 18% Spandex / 5% Polyurethane / 2% polyester, made in South Korea Imported Machine or hand wash, tumble dry low recommended BYE BYE ODOR - Silver-including ATB100 high-tech antibacterial yarn applied on toe, heel and shin. Stinky feet gone forever. FRESHNESS FOR YOUR FEET - ATB100s excellence in most wicking and drying keeps your feet not only odor-free but also feel pleasant. GREAT COMPANION FOR WORK/HIKE - Proven by a lot of verified purchase review - Great with steel and composite toe work boots, hiking shoes and more. SNUG, CUSHY, SUPPORTIVE,DURABLE - Heat and moisture ventilating instep, arch-supporting elastane and y-heel stitch, cushion reinforced toe and heel make the socks blister and rubbing resistant, also stand 8~10 hours shift work. YOU ARE PURCHASING - M size Navy 4pair, Half-Crew Length (Approx. 3.5inch high from peach bones)