Love this bag! I once wandered around Korea (hours of walking!) for a week with only this. It might say "Mini" but it's not really that small - I fit my 15" Macbook Pro, a DSLR, a couple paperback books to read, and a few changes of clothes. In fact it looks a bit big on me (I'm a wimpy 5'2" girl), but I think it looks *perfect* on my 6'5" guy BFF. The strap comes across your chest, slung onto your shoulder on one side and coming around the waist on the other side. The strap is easy to adjust and even when it's stuffed with all my things the strap is comfortable and doesn't dig into my shoulder.
Deceptively spacious, comfortable to carry, waterproof and very durable - and I dig its subdued style.