Polar gear stainless steel water bottle 500ml vacuum insulated metal water bottle, double wall, leakproof drinks bottle 12h hot, 24h cold perfect for work, travel, sports, gym . 12 hours hot, 24 hours cold our double wall, stainless steel, vacuum insulated water bottles ensures your drink maintains its temperature keeping drinks cool for up to 24 hours or hot for up to 12 hours. . Zero spills the screw cap stopper creates a watertight seal eliminating spills and the leakproof water bottle has an additional copper internal coating to prevent burning your fingers or condensation.. Travel water bottle 500ml our insulated water bottle is rust resistant and fits most drinks holders for bikes, car cup holders as well as standard backpack nets and pockets, making it perfect for travel. . Leakproof with non slip base keep your drink upright with no spills thanks to our leakproof lid seal and the bottle's non slip silicone base.