【Product Name】Made in Japan, High-Quality Medical Compression Socks for Warm Sleep, Anti-Swelling for Sleeping 【Product Description】This product is compression socks that work similarly to a pump, designed to improve circulation by applying graduated compression, with the highest pressure at the ankle, to venous blood and lymph fluid that have become stagnant due to weakened muscle contraction and relaxation. This helps to facilitate the flow from the bottom to the top. 【Product Features】 These are medical-grade elastic stockings used to reduce or prevent the stagnation of venous blood and lymph fluid in the lower limbs, with the aim of promoting venous return. They have the function of applying gradually decreasing compression from the periphery to the center. Made of acrylic, polyester, polyurethane, and wool. Shape and Size: Knee-high socks (without toes) 【Size】S-M size 【Color】Gray 【Shipping】 ▪︎ Shipping will take 1-3 days after payment. (Shipping operations are not conducted on weekends and holidays) 【Other】 ▪︎ Shipping will be in simple packaging.