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SPECIAL MENTION: Reebok’s new THERMOWARM+GRAPHENE winter garment collection—which includes jackets, pants and hoodies—is made with graphene, a heat-conductive one-atom-thick layer of carbon discovered in 2010. During tests, the company found that graphene helped retain between 8 and 15% more heat than areas without it. —Jesse Will
Buy Now: Women’s Thermowarm+Graphene Zip-Up Jacket, Men’s Thermowarm+Graphene Zip-Up Hoodie
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