aden + anais Baby Boys' Short Sleeve Kimono One-Piece, Skylight-9-12 95% Cotton/5% Spandex Imported Machine Wash Easy dress: allows baby to stay covered on top during diaper changes Breathable: muslin's open weave allows for airflow to help reduce the risk of overheating Comfy: made of cotton muslin with a touch of spandex for one-way stretch that moves with baby Metallic: prints as soft as they are shimmery Machine washable: stays soft wash after wash