Cotton 80%/Polyester 6%/Nylon 9%/Lycra 5% 100% LOVE AT FIRST FLIGHT SATISFACTION GUARANTEE: We promise these are the best fitting and longest lasting compression socks for relieving pain that you will ever own. If you don’t fall in love after your first use, we’ll refund your money or send a new pair, free! THERAPEUTIC PAIN RELIEF: True medical grade graduated compression – 25-30 mmhg at the foot & ankle, 15-20 mmhg at middle of the leg & calf, & 10-15 mmhg under the knee; the ideal amount of support stocking compression to easily get on and off your legs without feeling too tight. ADVANCED TECHNOLOGY FOR MAXIMUM COMFORT: Seamless toe box reduces friction & prevents blisters & corns. Extra soft foot padding absorbs impact & ensures ventilation. ELITE PERFORMANCE & RECOVERY: Incredible arch & heel support relieves plantar fasciitis. Antiembolic & circulatory design for alleviating diabetic swelling & arthritis. METICULOUSLY DESIGNED: With our socks there is NO bunching, calf constriction, rolling down legs, discomfort, or deep red marks. Our results are better than other leading compression sock brands!