Once cotton gets wet, it pulls heat from your body. This is helpful when you're exercising or outside on a hot day, but dangerous in the bitter cold. Now, researchers reporting in ACS Energy Letters have created an ultralight synthetic fiber material with cotton-like fluffiness that also repels...

Source: [Phys.org](https://phys.org/news/2026-06-fabric-fluffy-cotton-doesnt.html)

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