100% PolyesterZipper closureTumble DrySOFT, COMFORTABLE MATERIAL - Our onesies are made with a high quality, 100% polyester fleece that is ultra soft and anti-pill. Our onesies can be conveniently laundered at home with a washing machine. Simply add the onesie to a load with like colors, wash in cold water, and then tumble dry on a low heat setting or hang dry.ZIPPER DETACHABLE FEET AND REAR ZIPPER DROP SEAT - Our onesies feature a hidden zipper tract that allow users to remove or re-attach the feet as desired thus offering the versatility of both a footed and non-footed pajama. This also comes equipped with a concealed, rear zipper drop seat is conveniently located on the back side of the onesie, so you never have to take it off, even to use the restroom.GIVE THE GIFT OF LAZINESS - A comfortable pair of one-piece pajamas is a thoughtful way of telling him or her, "You deserve to relax, and do nothing for a long time" - making for very fun and unique present.