Soft combed cotton outter shell surrounds polyester mesh intended to teach you child to acknowledge and act upon small leaks.Covered elastic waistband for comfort and adjustable fit. It is easy to pull up and down too. This Training Underwear is washable, suitable for dryer and allow to use many time than traditional diaper. Hold up well and stay vibrant after washes. cute Potty Training Must Haves Pants make it easy for your child to start potty training. And leg holes are neither too loose nor too tight, it will not leave any trace on legs. Also very easy to pull up and down.These Sleep Training Underwear will not dry completely but let your baby feel moisture and then they will know when should go to toilet and do potty training. Training underwear are usually not completely waterproof to keep good breathability, reducing suffocation and skin damage. If amount of urine is large, water/urine leakage may occur.6 layers in crotch, these Potty Training Underwear Set are more absorbent than other training underwear beause absorbent pad in crotch is larger and thicker than other potty training pants.they can contain more accidents and give time for parents to change for their baby.