80% Nylon, 20% Spandex Improve Blood Circulation: Our compression socks boost your blood circulation and relieve leg pain, swelling, and fatigue. A must-have for anyone in need! All Day Comfort: Our socks are very comfortable, lightweight, and breathable so that you can wear them all day! The reinforced/cushioned heel and toe support provide unmatched comfort. Decrease Swelling and Fatigue: Our graduated compression socks provide the ideal compression to improve blood flow to relieve swelling and fatigue in your feet and legs. Great for any activity! Perfect Fit: Refer to our size chart to determine the best size for you. We do recommend measuring your calf circumference. Thank you for shopping with us! ❤ ️ Join Poshmark and use referral code MANGOSTRADING to receive $10 off your first order! ❤ ️