Amazon offers Prime members the Ogio 15" Ruck Slim Messenger Bag in Gray for $22.49 with free shipping. (Non-members can spend $49 or more to qualify for free shipping; otherwise, shipping costs $5.58.) That's the lowest total price we could find by $2. It features a 15" laptop compartment, front buckle closure flap pocket, interior mesh organizer pockets, back panel zippered pocket, webbing wrap creates impact protection.