From our friends at Xtracycle, the Everyday BikePack is a premium pannier rail capable backpack built to carry your productivity tools by day and your party provisions by night on your rack or back. Features waterproof TPU coated nylon construction and rolltop closure for those who ride rain or shine. A cavernous main compartment and front zip pouch with organization panel for small odds and ends make for versatile storage options for whatever you might be carrying. Pannier rail clips fit all standard racks, including the integrated rack of Priority models such as the e-Coast. Volume: 17 L/1,050 cu in with roll-top fully closed 22 L/1,350 cu in with roll-top fully unrolled and open