Hydro Flask 21 oz Standard Flex Cap

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The Hydro Flask 21oz Standard Flex Cap bottle is your everyday hydration essential. With TempShield® double-wall vacuum insulation, it keeps drinks cold for 24 hours or hot for 12, ensuring refreshment all day. Built from durable stainless steel with a leakproof Flex Cap, this reusable and refillable bottle is cupholder compatible, dishwasher safe, and BPA-free. Pure taste, no flavor transfer, and a sleek, durable design make it perfect for work, workouts, travel, or play. 21oz Standard Mouth insulated bottle with Flex Cap TempShield® double-wall insulation keeps drinks cold 24h, hot 12h Leakproof when closed Made from durable stainless steel No flavor transfer, pure taste Fits most car cupholders BPA-free and dishwasher safe Not for use on stove, microwave, or freezer Show more