Timbuk2 Chug Laptop Backpack polyester Slim profile-offering volume without the bulk. Padded, low profile internal laptop compartment for full protection without the bulk Custom-fit strap design for a truer, more comfortable fit. Quick access zip pocket for your daily essentials. Fine weave ballistic with the Timbuk2 color and durability you would expect. On-strap bottle opener for party tricks and quick refreshment Vista loop for blinky bike light attachment.