Organic Cotton Muslin cotton is a fine weave with a breathable weave Good ventilation makes it perfect for babies who dont like to regulate their temperature. Machine washable material is soft and conforms to your skin with every wash. The large size Aiden and Aney swaddles can be used as a baby stroller awning, nursing cape, playmat, diaper cover and more. It folds compactly, so you can keep one when you go out.