I purchased these and only tried them on. I've aired them out, so I don't think the fluffiness has been compromised. Recommended for tent shoes and car camping. Although unused, please understand that these have been stored in a private home. ■ Product Description These shoes are lightweight and soft, with 90% down filling. Down is also included on the soles, providing excellent insulation. They can be used in the office during the cold winter months, inside tents, at home, etc. They also pack compactly into a storage bag, so they won't get in the way when you carry them. ■ Product Specifications Outer fabric: 20D 400T nylon Filling: 90% duck down, 600FP Color: Black Size M: Length approx. 25cm, Height approx. 17cm, Weight approx. 90g *The above are product sizes, not foot sizes.