Timbuk2 H.A.L. Laptop Backpack Fabric Ventilated back panel to give your back breathing room Fine weave ballistic with the Timbuk2 color and durability you would expect. 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. Custom-fit strap design for a truer, more comfortable fit.