Stanley Pour-Over Coffee Maker
Simply add ground coffee and hot water, and then watch the magic take place. Removeable laser-cut steel filter allows slow infusion. Fits on top of most flasks and mugs.

For those who take their coffee seriously, the Perfect-Brew Pour Over is, well, perfect. Constructed of stainless steel, it features an easy-clean filter you can use remove and reuse - no disposable filters needed. Spoon in your favourite medium-ground coffee, saturate with hot water (it's all in the wrist), and wait 2-3 minutes. The Pour Over is thoughtfully designed to work with most Stanley mugs and bottles, so you can brew and go. Just like that. This is coffee done right.