Luxury Heavy Weight 100% Rayon from Bamboo Wash Cloth 700 GSM-10pc-Black 10 - Black Luxury Heavy Weight 100% bamboo fiber wash cloths 700 GSM. Each bath towel measures approximately 11.5" X 11.5". These towels are made from 100% Rayon from Bamboo. Bamboo towels are amazingly soft, even after repeated washings, they remain softer than the finest cotton towels. Because of the structure of the individual bamboo fibres (long hollow tubes), bamboo textiles are highly absorbent, and have a strong wicking action for fast drying. Textiles made with rayon from bamboo resist the growth of bacteria, mildew, fungus, and other microbes. This means that bamboo derived towels stay fresher for longer between washings. Bamboo is a highly renewable resource, and it's cultivation is beneficial to the environment.