78% Cotton,17% Polyester,3% Nylon, 2% Spandex High Quality Material:Made of premium cushioned cotton that absorbs sweat to keep feet comfortable and provide much-needed breath-ability during all-season wear. Anti Blister:Full cushion foot place in areas of high impact to reduce sock and foot pain during your all season wearing,it help you to avoid blisters. Comfortable:The full feet area is knit using thicker cushioned for extra durability,Fit perfectly to your feet and are super comfortable to wear long day. Reinforced:The heel and toe are reinforced for industrial strength durability.It will last as long as your heavy duty work shoes or boots,performance fit. Moisture Control:The fibers transports sweat away so your feet stay dry all days,keep your feet smelling fresh under extremely conditions.