Jamming a water bottle into a crowded bag can take significant Tetris skills and result in the illusion that you’re smuggling a large salami. One possible solution: the memobottle, a reusable water flask that holds many refreshing gulps yet is only 1.4 inches thick.
The transparent canteen was invented by Australia’s Jesse Leeworthy and Jonathan Byrt, who got the first model to market last summer after a successful Kickstarter campaign. That rather-large container carries a hydration bomb of 25 fluid ounces, but kind of looks like you’re chugging from an oil canister. The duo then produced a 13-ounce version that fits neatly into a small bag, pants pocket, or bag pocket.