Vacuum insulation is essential for anyone who values maintaining their beverage temperature. With double-wall construction, these bottles keep hot drinks hot for up to 12 hours and cold drinks refreshingly chilled for a full 48 hours—two whole days of perfect sips! Plus, they’re designed to be condensation-proof, eliminating any sweat or slipping for a secure grip. Built to fit standard vehicle cup holders, the durable stainless steel sides are resistant to scratches and fading, ensuring that your bottle not only performs well but looks great, too.