I'm 6'4+" and 300 lbs. My teenage son is 6'6" but a fit 200 lbs and he fits a lot better in a sleeping bag than I do.

My daughter is 6'4" and my wife is over 6'. None of us can buy shoes in stores and clothes are hard to find (we're all very long-legged). We've just learned to live with it and don't really have any official backpacking clothes. However, I just got my son some cool hiking shoes in size 15. I wear 16 and the selection drops even more. My son and I fit just fine in our 4-person tent; wouldn't try a 2-person.

No big deal really. I spend a month of the year in the jungles of Central America and bring gear for a night or two of camping here and there. The locals I'm with spend a month at a time in the jungle with not one item of official backpacking or camping gear. I'd be embarrassed to bring a $15 titanium camping spork along. I'm sure not going to complain about how nobody makes outdoor clothes my size.