This is an excellent small day-bag for urban and mountain photographers. This is my favorite day-bag because of its minimalism.It's compact enough to easily fit under theseat of airplanes and doesn't tempt to you to carry everything and the kitchen sink. I'm now using it for most of my fieldwork photography where I can return to base each night and don't need to carry a laptop.The air flow straps do help at keeping the sweat down. Tripod? Sure. The Trekker 200 has two tripod loops located on the bottom of the bag. They are removable so this makes it cumbersome at times to secure the pod. I have all my goodies listed below plus a few extras like filters, chargers, cleaning rags, cell phone, etc.

As stated before this is an excellent day bag but if you need the space for your PC you might look at the LowePro CompuTrekker AW. If you need a bag to carry around your gear plus a few family goods (diapers, wipes, snacks, etc) you might look in to the LowePro Rover AW.