Cotton75%, Polyester22%, Spandex3% Imported Elastic closure Cotton 75%, Polyester 22%, Spandex 3%. MESH VENTILATION ZONE: Precision knit, breathable fabrics can better wick perspiration, keep feet dry and make outdoor activities easier and more enjoyable. FULLY CUSHIONED: Thickened toes and heels, high density, high elasticity, can ease the impact, reduce friction, effectively protect your feet from the blisters, while providing shock absorption and durability. EXCELLENT ELASTICITY: Elasticized arch brace, good flexibility, to avoid the rotation of the sock during the movement; elastic ribbed cuffs, not tight or loose, durable and comfortable. HIGH PERFORMANCE MID QUARTER SOCKS: FEIDEER men??s 3 pairs of athletic cushioned socks are ideal for trekking, walking, running, camping, hiking, skiing and cycling etc outdoor activities.