The Columbia Manifest II Technical Daypack has a sum total of 33 liters carrying capacity and hauls everything you need for a day of waging war on campus, street or trail, including an exclusive-access, padded laptop pocket that safely holds up to a 17-ich computer. The Manifest's innovative Techlite straps are comprised of an insanely strong, lightweight compound molded around super-breathing mesh inserts, with a healthy helping of cushioning for comfort. Adding to the breathability is the ventilated Backdraft back panel, featuring directional foam conduits that direct hot air out and cooler air in. An expandable front shove-it pocket is a perfect spot to stash your bike helmet, while dual side water-bottle pockets hold-on-the-go hydration. The carry handle at center top doubles as a bike light loop. Reflective accents keep you visible in low light conditions. A bevy of organization pockets store all your small items securely.