If you are a big guy - your clothes also take more space. If you travel for a week with a carry on, you will struggle to get it all in, my carry on this week was 16 pair of underwear (night/day) 8 undershirt, 7 tshirt/shirts and 1 fleece sweater (+ 1 on me) + 3 pants (+ 1 on me) my carry on was too tight to fit all…