Sweat-sensitive textile coating shows wearer’s hydration levels

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Despite the body's natural warning signs, it can be difficult to keep an eye on hydration levels during exercise. Now, SOAK is a sweat-sensitive textile coating that can be applied to workout clothes and provide the wearer with color-coded visual cues — just like a litmus test — which tell them when they need to stop and have a drink. SOAK was developed by Paulien Routs in collaboration with Droog Design, cosmetic chemistry lab Thewa Innovations, and aesthetics doctor Annabeth Kroeskop. During exercise, the textile coating reacts to the levels of basicity and acidity in the wearers sweat, and changes…

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