Animal onesie pajamas for kids Material: flannel.Comfortable ultra-soft flannel material that are soft to touch and keep you warm Suitable: Party, Halloween, Christmas, carnival, cosplay costume, pajamas, birthday, New year. Zipper,convenience to wear and off,machine washable without losing shape Size:4T is suitable for height 37''-41'',5T is suitable for height 41''-45'', 6-8 years is suitable for height 49''-53", 8-10 years is suitable for height 49"-53", 10-12 years is suitable for height (53"-61")