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Cotton underwear turns yellow easily by time and hard to clean up, breeding bacterial that cause yeast infections.
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Cotton underwear are easy to deform, while underwear made from other man-made materials are not breathable.
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In contrast, underwear made from man-made fabric is nonbiodegradable, hence it's not environment friendly.


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Silk is naturally hypoallergenic and antibacterial. Silk is easy to clean up and minimizes bacteria breeding.
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Combined with other materials, silk underwear has good elasticity without compromising its breathability.
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Silk is a natural protein fiber and is easier to biodegradable than artificial fiber. So it does no harm to the environment.