Perfect size, and I like the abundance of zippered pockets that help me organize my stuff. The KLICKfix fastener on the back of the bag is unobtrusive when the bag is hand carried, and is quick to use. I couldn't ask for more in a light-duty briefcase, designed for my Tern bike. I've never been happy with backpack or shoulder strap carry solutions while I'm pedaling. Distracting and bad for my back. My philosophy is that the bike should carry all the weight, not me. The HQ bag meets that requirement.