The fabric is thin enough to see through the diaper, and it's a gauze-like material. Therefore, it's very cool! How about it for the rest of the summer, when the heat is still severe, at a low price? It's easy to change with the front buttons, and there are no stains. Material: Cotton *Shipping is unavailable from July 30th to August 20th due to absence. Shipping will resume as usual after that.