We sipped, measured and even drop-tested two of the top bottles on the market to figure out which deserves the hypeIn the UK? The best 53 water bottles for leaks, looks and sustainability – tested Sign up for the Filter US newsletter, your weekly guide to buying fewer, better things In the oddly contentious world of water bottles, few carry the cultural cachet of the vaunted Yeti Rambler and Owala FreeSip. The Rambler is an outdoorsy icon, the Jeep of the water bottle world from a brand best known for its bear-proof coolers. The FreeSip is a quirky up-and-comer known more for its innovative features than its legacy – the Rivian of hydration. But which is better?