This Penguin costume onesie comes in sizes M and XL. They are made to be loose fitting and will accommodate adults and children who are at least five feet tall. If you are shorter than 6 feet tall and of average build go with the M. If you are taller than 6 feet or above average build go with the XL.
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