Timbuk2 Commute 2011 Laptop Messenger Bag Commute Laptop Messenger Bag was originally created in response to increasing prevalence and regulations of TSA in American airports Laptop compartment unzips to lie flat, so you don't have to remove laptop at airport security; waterproof TPU flap keeps gear dry when hailing a cab in the rain Grab strap for easy lifting; removable shoulder strap enables you to wear it like messenger or briefcase; durable ballistic nylon fabric and waterproof hypalon rubberized bottom Measures 17.3 by 12.8 by 5.9 inches (W x H x D) with 1,098-cubic-inch volume and 2.7-pound weight Includes limited lifetime manufacturer's warranty