Meet the mother of all laptop backpacks, with a plush-paneled pocket for your 17-inch laptop, expandable compartment and extra loop-de-loops for your headphones, helmet, yoga mat, and, hell, yoga teacher. Fill it up, put it on and show the world how a pack mule rides a bike. Features: - Dimensions: 12.4" x 21.3" x 8.3" - Custom-fit strap design for a truer, more comfortable fit. - Expands from 26L to 35L when you need extra capacity - Paired VELCRO brand loops to secure your helmet/headphones. - Front organizer pockets fit must have accessories. - On-strap bottle opener for party tricks and quick refreshment. - Vista loop for 'blinky' bike light attachment. - This laptop backpack has padded, low profile internal laptop compartment for full protection without the bulk - Timbuk2's trademarked Swing Around Access; grab your laptop without taking off your pack. - Fully padded laptop compartment lined with quilted tricot fabric; soft yet secure (fits up to 17" Macbook). Material: - Water resistant fold over top flap. - Fine weave ballistic with the Timbuk2 color and durability you would expect.