Tee-bone - Under Armour® BackpackThis Tee bone backpack's got that Under Armour edge, you know, the kind that shrugs off rain and stains like it's no big dealthanks to that UA Storm fabric that's 93% polyester and 7% nylon, keeping everything inside dry and drama free. Stuff it with your laptop in the soft lined sleeve that hugs up to a 16 inch beast, toss in a 32 oz water bottle in the side pocket, and zip up those front pockets for all the quick grab essentials. It's roomy too,