The Merc Day Pack is a medium sized backpack, perfect for your daily urban jaunts. Composed of a heavy-duty Polyester and Cordura®chassis, the Merc is more than capable of carrying your daily necessities. The integrated audio cord system allows you to plug in your MP3 player within the safe confines of the bag, while routing the headphone jack to a user-friendly location. Ergonomically superior comfort fit back pad and shoulder straps are specifically contoured to fit an aggressive riding position. The perfect mid-sized pack.