Theyre not a diaper, but the polyurethane plastic pants i bought from fetware are the loudest things in the world. Its the noise of having a lightweight tarp in your pants, yet theyre soft, supple, and incredibly durable. Ive had my pair for five years now and theyve survived everything-machine washing, the dryer, neglect; I mostly wash them in the shower but still, Ive even purchased plastic pants that said they were washer/dryer safe only to have them fall apart. Not these though! Only down side is theyre LOUD, which if thats what you want then these are for you. Even under a onesie and footed pajamas they still will fill a room with loud crinkles. Have fun!