This Shark costume onesie is uni-sex and one size. They are made to be loose fitting and will accommodate adults and children who are at least five feet tall. However, if you're taller than six feet the wrist and ankle cuffs might not make it all the way to your wrists and ankles.
The bagginess of these costume onesies means there's a lot of room in the chest and waist. If you're concerned with fitting into this onesie, the limiting factor is usually your shoulder width.
Care Instructions: Machine Wash Cold, Non-Chlorine Bleach, Dry Flat, Do Not Iron, Do Not Dry Clean