Interesting question, and I've thought about it before, too. I'm not actually sure. My trips are usually a bit under three weeks in length, so it's really just lots of clothes, some footwear. I hate doing laundry on trips. And I'm always a little nutty about making sure that I have at least a little of everything. Next trip (mid-January) I'm going to try doing it with less. I never wear even close to all that I take.