Our muslin fabrics are organic GOTS certified. The fabric is made of 50% cotton and 50% bamboo fabric. Babyshower, newborn gift, anniversary gift, birthday gift. Our muslin fabrics are organic GOTS certified. The fabric is made of 50% cotton and 50% bamboo fabric. The water is colored with some dyes. Due to its fabric, muslin gets crinkle as it is washed. The muslin fabric should be washed at a maximum of 30 degrees. not given %50 Bamboo %50 Cotton