Snow Peak Kanpai 500

With three separate lids – one for hot beverages, one for cold beverages, and one for drinking – the Kanpai is a modular option for commuters who want a travel mug that doubles as a multi-use bottle. It retains heat well, keeping coffee hot for five and a half hours, but the drinking lid is leak-prone. It's best used as a thermos for camping. [$80; snowpeak.com]