The feature of 2 layers (inner side) of 100% cotton fabric absorbs moisture well and keeps the heat cool by carrying the heat out of the body. One of the most important features of cotton fabric is that it contains natural fibers completely. It is one of the most beneficial fabrics for the human body. It absorbs moisture well and throws the heat out of the body, keeping the body cool. It is very comfortable to use as it keeps both cool and absorbent in hot weather conditions. This product has successfully passed filtration and washing tests.