ALCARE Ansilk 3 High Socks M Light Brown Ansilk 3 High Socks Color: Light Brown Size: M New, unused. The expiration date will be at least 4.5 years longer than the one in the photo! The "Ansilk Series" are medical compression stockings designed based on Japanese body shape data. The C&G (Compression & Gradation) structure, which gradually reduces the compression pressure from the ankle to the thigh, promotes lower limb venous blood flow. The high fit supports comfortable daily wear. For safe use, do not use for purposes other than those intended, and use according to the medical device package insert and instruction manual.