Inspect the baby diaper quality
The sewing in between the layers should be strong and there ought to be no gaps around the poppers used to fasten the diapers. Preferably a double gusset should be in place to guard against leaks. The waterproof PUL (polyurethane laminate) layer ought to work-- a method to test this is to turn the baby diaper pocket inside out exposing the PUL layer. Take a 1ml syringe and use 1ml of water to the surface-- leave for 1 minute then draw back the water and see just how much you get back it (ought to be just short of 1ml. Now put a layer of absorbing paper on the opposite side of the PUL layer and reapply the water and rub it on the surface. Remove the absorbing paper-- it should be totally dry. Remember using sanitizers and direct heat when drying the baby diaper can damage the PUL layer.
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