The Freerain24 2.0 weighs just 6.6 oz, yet has a capacity of 24 liters. It’s made from ripstop Cordura fabric and features a Hypalon roll top main compartment as well as an external zippered pocket and dual water bottle pockets.
Additionally, it can be stuffed into a pocket for storage. Offered in Black and Coyote (coming) from matadorup.com.