Measure both your shoe size and ankle circumference: Refer to size chart; available in four sizes; Small, Medium, Large, XLarge; unisex design for men and women; quarter-length socks made of 80% durable nylon and 20% spandex; one pair. Reinforced heel & toe: Make this sock Ideal for basketball, rucking, soccer, running, hiking, tennis, volleyball, golf, exercise gym workout, cycling or any fitness Sport. Comfortable and breathable: Moisture-wicking fabric with ultra-comfortable mesh toe for ventilation; slip-proof design helps socks stay up and soothes tired feet. Patented design: Provides a unique alignment system for proper foot positioning: Simply slide the marked left or right sock on the foot, center the diamond pattern, and experience the ideal compression sock with pinpoint cushioning for all-day relief. Provides foot protection and shock absorption: Strategic cushioning helps to avoid blisters and friction; reinforced heel and toe make these socks ideal for various sports activities. Targeted pain relief: Graduated compression with targeted cushioning reduces standing, walking, heel, and arch pain.