Description:Filled with duck down, 150g-200g, 650+, lightweight, softMade of ultralight high density waterproof Nylon fibre, life only waterproof, do not tread or use in water.Can be compacted into small size, storage bag included for convenient storage and carryDrawstring closure, easy to dress or take off, better windproof and keep your feet warm in cold winterSuitable for men women outdoors and indoors, home use, picnic, camping tent, backyard, beach, etc.Specification:Material: Duck Down, NylonSize Chart:Size M (35-38): Length 25cm/ 9.8inchSize L (39-43): Length 28cm/ 11inchSize XL (44-47): Length 31cm/ 12.2inchHeight: approx. 30cm/ 11.8inchPackage Includes:1 Pair Down Booties Socks Slippers1 Piece Storage BagNote:1. Please allow slightly error due to manual measurement.2. Due to the difference between different monitors, the picture may not reflect the actual color of the item.3. Wish you a wonderful on-line shopping