We like how the Comet 30L Backpack shows the same commitment to fit function and features as Osprey's technical packs. That starts with highly abrasion-resistant nylon fabrics made with recycled materials for sustainability and the Airscape back panel which ventilates our back to stay drier and more comfortable when we're lugging our work and school stuff to-and-from home. The BioStretch harness and removable waist belt keep the pack close to our body while we're sprinting across campus or strolling down the trail. At the same time it's stacked with a commuter-specific feature set such as a zip-lock top compartment external zip pocket dual mesh bottle pockets an internal organizational pocket with key clip an integrated laptop sleeve and a phone-friendly scratch-resistant zip pocket--even a blinky-light attachment for better visibility on our bikes or twilight walks.