I am looking for a new bag. I want a one-strapped bag for the shoulder but I want it in backpack form, like a sling-pack. I checked out MEC's selection a few days ago but couldn't find the right size. They're either too big or too small. I want something big enough where I can fit a bible and notebook, plus an umbrella, but not a fat bag. A mesh pocket for a water bottle would be nice. I'd also like it to have a neat little pocket on the strap for my cell, though that's not a major requirement. I find that the trouble with MEC bags are that they have way too many straps hanging down that we never use.
Material wise I like the MEC bags because they are waterproof and are of pretty good quality that you kinda know it'll last 15-20 years.