The Peak Design City Crescent Bag in 6L is built for the days that don't call for a full load. It's sized for the essentials, keys, wallet, phone, a few small items, and made from water-resistant nylon that shrugs off a light rain or an unexpected splash on the walk to the train. Integrated pockets keep everything from sliding around loose, so the bag stays organized even half full. What Our Gearhead(R) Experts Are Saying:"On the days I'm not hauling my whole bag, this is what I grab. The crescent shape still settles onto my body the same way, even with barely anything in it."