I've been storing these for a long time. The bag is yellowed and stained. If you want the set, I have 7 more in stock (8 total), so I can offer a set discount. I've also been storing other items for a long time. I also have 7 L size items in stock. Combination sets are also possible. Structure: The back has small loops. Feel: Smooth and similar to a towel. Functionality: Highly absorbent and moisture-wicking, with excellent breathability. Suitable season: Comfortable to wear even in hot weather, suitable for spring to autumn, and indoor wear in winter. These are foot supporters made of back pile material, comfortable even when you sweat. - Size: M (30-42cm) - Material: Back pile - Features: Keeps you feeling dry and comfortable even when you sweat Thank you for viewing.