This is our new fantastic Wunsy Space Fleece Onesie! We love this one here! Made to our normal good quality spec with a good generous fit for the age. Bright and fresh blue with a space theme. See our spec sheet picture for some help with fit. 100% Polyester, Machine Wash and tumble dry. Fastening: Zipper, top and bottom, easy toilet runs for boys. Made from super soft comfortable and warm fleece. Cuffed at ankles and wrists, so even if a bit big it won't slip off too easily. Some people buy a bigger size for growing room. This fabric is a very good washer, no iron and fast dry. The child will live in it :) Wunsy Super Soft Fleece Space Science All-in-One Onesie in Blue Size: 12-13 Years