lowepro bags are legit dude. i dont see how that could carry a tripod. i have the fastpack 250 (i think its the 250) and you can throw a tripod under the bottom flap. check that out maybe if your looking for a larger bag.
LowePRo bags are shit for skiing with, really unstable. Look for an old style Sequence (the one with the mesh water bottle holder on the side), you can strap so much shit to the outside of that one.