Cosy: It's sure to keep you warm during the colder nights. Material: Each onesie is made from 100% polyester. Festive: Raise your Christmas spirits with this fun, seasonal design! Size options: Choose from 5 UK size options - see full details for guide. Colour options: Choose from 7 designs - see full details for design options list. Adult onesie: Get your hands on a Christmas print onesie for women. Christmas Women's Onesie | Black | Living Social