Flexnest Flexbottle Pro Vaccum Insulated Stainless Steel Hot and Cold Water Bottle 530 ml Bottle(Pack of 1, Black, Steel)
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We made the perfect vaccum sealed steel water bottle for your workouts. Bonus points that it fits perfectly in the Flexbike, Flexbike+ and Flextread. The Flexbottle Pro uses double-wall vacuum insulation, to isolate both, the hot and cold temperature of liquids.