Adult Size Adjustable Diaper Cover Adult Size Adjustable Diaper Cover Highly breathable and leak-resistant, it's very popular with customers. Sizes: S, M, L available. Material: 100% polyester material with excellent breathability and a comfortable feel against the skin. ★ Easy to clean and quick-drying, so it's very convenient as it dries quickly after washing. How to Adjust the Size of the New Diaper Cover There are 3 rows of buttons from top to bottom. To adjust the waist size, you can adjust the left and right sides with Velcro. To adjust to the size of the diaper (S, M, L), you can adjust it by attaching the third row's three buttons or the fourth row's three buttons to the second row's buttons.