Mountainsmith Colfax 25 Backpack Made from 210d Duramax Junior RipStop Nylon Taking the features of our most trail worthy packs, we've extended them into a commute ready workhorse for school, office and travel Anvil AirwayTM perspiration control system Side ''V'' compression straps for load stability Dual zippered side pockets Padded interior organizer sleeve will fit most 15.4 inch laptops