The back of the waist is elastic. It looks like a skirt, but the lining is a culotte style, and the same fabric as the outer layer is used on the hem of the lining, so you don't have to worry about it showing (^.^). I think children can also use it. It's good for everyday wear and for a little outing ^ ^ Black and white houndstooth skirt, waist 69-77cm, 100% polyester. - Color: Black and white houndstooth pattern - Size: Waist 69-77cm - Material: 100% polyester Thank you for viewing.