STREET STYLE: This Black Edition bag has serious good looks. It has this urban minimalistic chic. It combines the smooth texture and haptic of tarp fabrics with FUNCTIONALITY: We built this hybrid duffel rucksack to be lightweight and versatile. It is expandable and the size can be adjusted with straps at the sides to fit your packing needs perfectly. The padded shoulder straps have a sternum strap, great for using the bag riding your bike.