The GSI Outdoors Coffee Rocket is an incredibly clever, one person pour-over camp coffee maker which collapses to nest inside your favorite camp mug. In just a few minutes, you have a rich, invigorating fresh coffee anywhere. Designed with fun in mind, this compact pour-over camp coffee maker design incorporates an 8 fl. oz. (230 ml) drip cone designed to funnel piping hot water into an easy-to-clean, stainless steel filter. Filter holds up to 3.5 fl. oz. (10 grams) of medium grind coffee for a quick and robust brew. Filter body neatly nests into water hopper for easy storage