The onesie pajamas composed of fleece fabric, soft and comfortable The kids onesie designs all feature a hood with eyes, teeth, and nose for full effect.Can run and play like animals,Satisfy your curiosity. Size: 4T fit for height 95-105CM (37"-41");5T fit for height 106-115CM (42"-45");6-8 Years fit for height 116-125CM (46"-49")8-10 Years fit for height 126-135CM (50"-53"));10-12 Years fit for height 136-145CM (54"-57") The kids onesie blue costume can be used in all occasions, such as parties, Halloween, Christmas, home clothes, pajamas, etc. Machine washable and stand repeated cleanings without losing their shape