100% Polyester.FULL FRONT ZIPPER: Achieve maximum warmth this holiday season with a Adult Christmas Onesie, equipped with a head-to-toe zipper to keep you and your loved ones cozy all winter.CONVENIENT POCKETS: The adult onesies for christmas feature convenient, zippered side pockets offer plenty of room for storing unreasonable amounts of christmas candy and keeping it safe.ULTRA COMFORTABLE FEEL: Our matching christmas couples onesies for adults are made with Hyper-comfy fabric for a smooth, lightweight fit and feel. Perfect for snuggling up!PREMIUM CONSTRUCTIONL: Crafted with a durable fabric blend, The adult onesies will last for Christmases yet to come, and matching family christmas cards for years!