These grippy socks by AirSox are a size medium and are purple. They are made of 70% cotton 24% nylon 1% polyester and 5% silicone. They are perfect for Pilates, yoga, and the gym. I'm in the process of downsizing after a recent move, and these items are still available. However, I do have a deadline of September 16th to find new homes for them. If you're still interested or have any questions, please feel free to let me know. I'd be happy to work something out with you. 😊 If I don't find a buyer by September 16th, I plan to donate these items, so this could be a great opportunity to give them a second life.