This is a quilted, waterproof changing mat. I received it as a gift, but I'm selling it because I don't use it. The following is a quote from the website: 〇 Size Folded: 18cm (height) x 25cm (width) x 7.5cm (thickness) In use: Mat section - 68cm (height) x 53cm (width) x 0.2cm (thickness), Flap section - 20cm (height) x 24.5cm (width) x 0.2cm (thickness) 〇 Material Surface: 100% cotton Lining: 100% polyester