RelaxSan support Thigh High W/Lace stockings with firm graduated compression of 20-30 mmHg. Ideal for the treatment for poor blood circulation, leg swelling, varicose veins, phlebitis, thrombosis, oedemas, and chronic venous insufficiency. These support Thigh High W/Lace are also Ideal after surgery to help prevent blood clots. They feature patterned hypoallergenic silicone lace top bands in order for the socks not to roll up and reinforced heels and toes for maximum comfort and durability. Fabric content: 76% nylon, 24% elastane Size guide: Size 1: Ankle Girt: 7-8 in / Height: 5-5.3 ft / Weight: 95-117 lb Size 2: Ankle Girt: 8-9 in / Height: 5.2-5.5 ft / Weight: 106-139 lb Size 3: Ankle Girt: 9-10 in / Height: 5.3-5.7 ft / Weight: 128-161 lb Size 4: Ankle Girt: 10-11 in / Height: 5.5-6 ft / Weight: 139-183 lb Size 5: Ankle Girt: 11-12 in / Height: 5.7-6.2 ft / Weight: 150-205 lb