This is a set of swaddles that my daughter, who used to cry a lot at night, wore. Includes: Spring, Autumn, Winter swaddles: S x 2, M x 1 Spring, Summer, Autumn mesh swaddles: M x 4 Total: 7 pieces Made of cotton, they are breathable. I loved using these because my daughter cried less at night when she wore them. She can now sleep without swaddles, so I hope someone else can use them. There is some yellowing from milk around the collar, but I have thoroughly cleaned them with oxygen bleach, so please rest assured.