The unique fabric blend of the Star Cluster Footie by aden + anais makes it breathable, stretchable and comfy. Perfect for playtime, tummy time and naptime, this sweet outfit is a perfect go-to for your little one. Covered zipper for easy changes.Soft, breathable and cozy. Long sleeves. Covered zipper protects baby's delicate skin. Built-in footies. 95% cotton/5% spandex muslin. Machine wash. 1-year manufacturer's limited warranty. Imported.