This romper has a relaxed fit in the body and puffy, gathered pants. The sleeves are not voluminous, so even though the body is puffy, it doesn't feel bulky. It also doesn't feel bulky when wearing a jacket. There is a button on the chest and plus snaps at the crotch. Materials: Body and Sleeves: Cotton (double gauze) Pants and Collar: Cotton/Rayon Size: 75 Measurements: Total Length: 43cm Body Width: 30cm Sleeve Length: 34cm (from center back) The total length is measured as shown in the photo, and the pants part will stretch down. This is handmade by an amateur, so it is not perfect like a ready-made product. Please understand this before purchasing. The size is only a guide. The measurements are listed, so we recommend comparing them with your existing clothes.