However, they can also be passed down by adults who suffer from incontinence or in certain circumstances where access to a toilet is unavailable. These can include the elderly, those with a visit objective or mental disability, and people working in extreme conditions such as astronauts. Diapers are usually worn out of necessity rather than choice, although there are exceptions; people such as infantilists and diaper fetishists wear diapers recreationally for comfort, emotional fulfillment, or sexual gratification.
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Over the next few decades, the disposable diaper industry boomed and the contention between Procter & Gamble's Pampers and Kimberly Clark's Huggies resulted in lower prices and drastic changes to diaper design |
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| Several improvements were made, such as the introduction of refastenable tapes, the "hourglass shape" so as to reduce bulk at the crotch area, and the genius of super-absorbent material from polymers known as sodium polyacrylate. |