This is a long-selling model of Velocity, a lightweight version of Velocity, with its unique technology of fabric seams, along with the waterproof coating on the back, it has IP64 waterproof and dustproof performance similar to Velocity. The chic color variations make it suitable for commuting to work with suits and other outfits. It can also be matched with outdoor activities as well as casual settings. You can choose from 17L that is easy to handle even for women and petite individuals, and 6.1 gal (23 L) with ample storage capacity and just the right size.