The stainless steel, BPA-free Swell water bottle ($35 for 17 oz/500 ml size) is perfect for any of your outdoor Summer plans. The bottle keeps beverages incredibly cold for up to 24 hours, even if you're sipping poolside, and it's double-walled so you don't have to deal with frosty exteriors. It also fits into your car's cupholder, is virtually unbreakable, and has a mouth wide enough to fit ice cubes. And bonus if you're planning a posthike picnic anytime this season: the Swell bottle also comes in a 750 ml size (25 oz; $45) — just right for keeping a bottle of Chardonnay cool as you trek up the hillside.
— Leta Shy, assistant editor