Three layers of material with a unique design to let water flow out and poop stay in.
The outer layer is a soft vibrate polyester nylon (swim material)
There is a cotton crotch lining on the inside for comfort with a waterproof lining as a poop guard. (think of a large pad lining your under ware) This lining doesn't cover the whole diaper so water can still escape and not be trapped inside the diaper.
The cotton lining is covered by a breathable light mesh material.
SIZE CHART - (please measure for best fit)
|Small||17.5-18.5||44.5-47||8.5-10||21.5-25.5||10 - 18||4.5 - 8.5|
|Med||18.5-19.5||47-49.5||9.5-11||24-28||18 - 25||8.5 - 11.5|
|Large||19.5 - 20||49.5 - 51||10 11.5||25.5 - 29||25 - 35||11.5 - 16|