Very portable and ergonomic cross bag. I use this often when I don't really need my backpack, and it's just great. The material is waterproof and the build is sturdy. This bag can easily fit all of the items i usually need on a daily basis: wallet, a 6" phone in the velcro pocket upfront, keys that can be attached to a special hook string for more safety, and other stuff that will fit in the 3 interior pockets or the front vertical pocket.Zippers are good quality and an adjustable length strap can be attached to the bag.It can prove specifically useful for air travel, it's a good value for the quality. Special mention for using recycled materials.