New Balance Legacy Commuter Backpack This commuter backpack is the perfect combination of a cabin size trolley and a backpack. The Large main compartment can be expanded by 6cm in depth, and with the compression straps and the shirt pocket, it creates the look and feel of a trolley. On the front of the bag, you'll find both a gusset compartment and a front zipped stash pocket. The bag has protected base, and the padded top handle for easy carrying by hand when not using the padded, adjustable shoulderstraps.