This is really the best bag I've ever had, and I've gone through a few. I use my bag as a briefcase for work, and on weekends, and it's perfect whether I'm going to a meeting or biking home at the end of the day. It's the perfect size, flexible, and looks great. Not too techy looking, and not so many internal pockets and flaps and stuff just adding to the weight and taking up space. When it's empty it is so light, and when I need to I can pack in a lot. But it's always comfortable even when it is stuffed. I added the water proof liner because I always have a laptop with me, and I've never seen a drop of water get inside.
Smart detailing at the right places, and the removable pads for the shoulder straps are one of the smartest idea. I bought 2 so I can switch them out and let one dry if I get soaked biking home. Now if only the shoulder strap pad was a little larger with a pocket for my phone, and then waterproofed. I would buy that in a heartbeat.
Just got an email from you to buy a bag. I really want another one but the zero messenger bag that I have had for 5 yrs. still looks great. I love this bag and use it every single day. keep up the great work.