I had a Slingshot 202AW for about 4 months before I got my 70-200IS II. You could fit it in the but the body and all your lenses had to be in different compartments. Also, with a 5D3, a 60D, and three lenses and two flash units, I had to upgrade my bag. Slingshots are nice, but putting all that weight onto one shoulder was just not going to work for me. So after a few days of researching, I found the Think Tank Street Walker Hard Drive. This bag is just AMAZING. There is so much space in this compact beauty. It holds my 5D3 with 70-200 IS II with the hood in the shooting position! I can also have my laptop, jacket, mittens, a snack, coffee mug, basically everything you could ever want in this bag! It is simply amazing how much this bag holds and you should really look into it. At $190USD It's way beyond the competition and not too highly priced either.