140 denier open toe support knee highs (set 2 pairs) with moderate graduated compression of 18-22 mmHg They stimulate poor blood circulation, reduce ankle swelling and soothe tired and aching legs 75% Nylon, 25% Elastane Hand Wash Only 850AG140PARX/CASS_0010011 Ideal for mild venous insufficiency, swelling and varicose veins Reinforced heel and sole for maximum comfort, durability and fit - High quality, 100% Made in Italy To CHOOSE THE RIGHT SIZE for you, please pay attention to the SIZE CHART among IMAGES RelaxSan 140 denier open-toe support knee high socks exert moderate graduated compression of 18-22 mmHg. For energised healthy legs, they improve poor blood circulation, reduce ankle swelling, and soothe tired and aching legs. These support knee highs are also perfect for mild venous insufficiency and varicose veins. They are ideal during pregnancy and feature reinforced sole and heels for maximum comfort and durability. Fabric content: 75% nylon, 25% elastane Size guide: Size 1: Ankle Girt: cm 18-20,5 (in 7-8) Size 2: Ankle Girt: cm 20,5-23 (in 8-9) Size 3: Ankle Girt: cm 23-25,5 (in 9-10) Size 4: Ankle Girt: cm 25,5-28 (in 10-11) Size 5: Ankle Girt: cm 28-30,5 (in 11-12)