[url=http://gizmodo.com/you-can-finally-buy-the-magical-spray-that-waterproofs-563613333?utm_campaign=socialflow_gizmodo_facebook&utm_source=gizmodo_facebook&utm_medium=socialflow]Source (Gizmodo)[/url]
Uh ya...I want this now.
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Good, but bad for clothing. When you sweat, the water won't be able to evaporate through the clothing. You'll be drenched 24/7 in your own liquids. For actual rain coats, good idea. For every day shirts, pants, shoes... Not so much unless they have vents everywhere.