Osprey’s Ozone Convertible 50L/22″ is a travelling chameleon. First, it’s a piece of wheeled luggage perfectly sized to meet the airline’s maximum carry-on size specifications. But it has a hidden backpack suspension system so you can carry on when the pavement ends. When you reach base camp, you can zip off the Ozone Convertible’s detachable daypack and keep on exploring. At the base of the pack, Osprey’s HighRoad LT Chassis combines a durable ABS plastic back plate with a lightweight aluminum frame to ride on large, sealed bearing wheels for easy rolling even on bumpy cobblestones. Internal and external compression straps add extra stability. Open the panel zipper to access the spacious main compartment where a series of carefully designed inner storage pockets line the periphery. Exterior features include a top zippered pocket for quick access to your water bottle and other small items. There’s a large front zippered panel pocket and a back pocket with a drain port for damp storage. Low profile carry handles on top and side provide purchase when you have to hoist the bag up into the back of the chicken bus in Guatemala. An internal ID card holder helps reunite you with you gear should it go astray while making a tight connection. The detachable Ozone Convertible Daypack’s main compartment has storage for a laptop, tablet and extra clothes or food. There’s a front panel pocket and also a zippered pocket for securing small items. The scratch-free exterior slash pocket protects your sunglasses or electronics.