Revelate Designs Ranger Frame Bag. Features: Off-the-shelf bag that fits a huge range of standard mountain and fatbike geometries Zipstretch construction offers a wetsuit style molded-tooth zipper with exclusive stretch Cordura panels that reduce zipper stress when closing bag Exit port in main compartment for hydration tube or wires Bags feature one main compartment with vertical divider Stretch mesh internal pocket Made in the USA with domestic and imported materials Third party online sales strictly prohibited by manufacturer Specs: Size:medium Capacity:445 cu in (7.3L) Color:black