Ladies Christmas Design Hooded All In One Onesie 100% Polyester Ladies Christmas Onesie. This fun, Christmas themed Onesie is designed to brighten up the darker nights. You can choose from either Red or Navy Blue. The All in one is zip fastened and has a soft hood. This All in one is made from 100% polyester, available in three sizes measures: Size Small (UK 10-12 Approx): Chest: 100cm, Size Medium (UK 12-14 Approx): Chest: 110cm, Size Large (UK 16-18 Approx): Chest: 120cm 0 0