Thermal insole that provides warmth to the feet. The upper part of the insole is made of synthetic wool and underneath it is made of Polyester and latex foam. Ideal for keeping feet warm and dry. Absorbent and odorless. Can be adjusted to the desired size. Universal size (36-46). . *For hygiene reasons, we do not accept returns for this product after it has been opened. It can only be returned if the seal is still intact and the packaging has not been manipulated.