Wild Silk Medical Support Socks These compression, elastic stocking-type socks are for those concerned about varicose veins, lymphedema, and swelling. Purchased from Rakuten "Kinu Kobo Hack" for 3450 yen. They contain silk and feel smooth, but I don't know the detailed specifications. I tried them on once after purchasing and have stored them at home for a long time. Please understand and accept that these are used items before purchasing.