"excellent bag, cant think of any way it could be better"
Its a great bag, I can fit a 13 inch macbook, a charger, 2 textbooks, a rain jacket, and a pair of rain pants in it with plenty of room to spare for a few small groceries or beers. Its extremely durable and rugged enough to be an adventure bag if you want. Its extremely comfortable and the side strap holds it in place nicely when your on a bicycle with it. I take it to work every day, and it keeps everything inside completely dry, even in a torrential downpour.