Nishikawa Made in Japan Sleepure Wool Mattress Pad Color: Ivory Size: (Single) 100 x 200 cm Front Pile yarn: 100% Wool Base yarn: 100% Polyester Back: 65% Polyester, 35% Cotton Filling: Polyester This is a 100% wool mattress pad with a soft and gentle feel against the skin. Perfect for autumn and winter. Cozy warmth for your back. [Reinforced elastic bands on all four corners] Elastic bands on all four corners allow you to secure it to your futon or bed mattress. It uses reinforced elastic bands (NDX rubber) that are less likely to shift even when you turn over and less likely to stretch even after repeated washing. [Machine washable (using a net)] Convenient for keeping clean as it can be washed immediately if it gets dirty.