The Osprey Spin 32 Backpack is simply a bigger version of the Spin 22. Both packs are designed for the bike commuter lifestyle but share the love with pavement pounders and trail trekkers alike. Regardless of your intended use, be it school, work, or traveling, the EVA foam padded shoulder straps and Airspace backpanel will keep you going strong all day long. If you're traversing treacherous terrain, compression straps bring the center of gravity close to your body and ErgoPull closure on the waistband helps minimize backpack bounce. The front flap hides the zipped main compartment, providing an additional line of defense against sticky fingers when you're cramming onto crowded commuter trains. A slash pocket on top of the flap holds tiny trifles like your smartphone, city map, and emergency chocolate. The main pocket readily accommodates a 15 inch laptop. If you need more space for your chocolate caches, unzip side bellows for an additional four liters of space. If you're walking along the banks of the Seine or hiking in the high Sierras and it starts to rain, the Spin 32 comes with it's very own raincoat. All you have to do is open the pocket, shake out the rain cover, and put it on your pack. Easy. The rain cover is not just for rain protection it has its own blinker light attachment tab and reflective materials, increasing the chances drivers will see you long before they feel you. If the rain cover is too much work, the Spin 32 also has a blinker light attachment tab. A full strand of holiday lights won't fit, but a small blinker light will.