YUYU's NEW Organic Japanese Cotton Collection brings you three beautiful YUYUs with covers made of 100% Organic Japanese Cotton, woven with natural brown and green cotton yarn. This eco-friendly fabric doesn't use bleaching or dying agents and the cotton residue remaining on the surface of the fabric is not washed with chemicals.

Whether you are easing your body aches and pains through targeted heat therapy or freezing your YUYU to cool your body down, the breathable cotton covers makes it ideal for both warm and cold use.