I have a friend who has logged over millions of air miles and is constantly on the road. He currently lugs around a Tumi nylon ballistic briefcase which is way too small. When he squeezes in numerous booklets, pamphlets and other random items, it looks as if it's about to burst while heaving it around. I'd like to get him a nice briefcase. Something extremely light but durable enough to withstand all his traveling. Flexible and spacious would also be great. I believe function is more important than form here, but the briefcase should also be presentable in meetings. A mutual friend suggested one of those roller suitcases but I always found them quite cumbersome. Leather is likely the most aesthetically-pleasing material, but I know that bags from Saddleback are heavy and rough on the arm. Are there any SF-approved briefcases which would fit the above description? I tried searching the forums multiple times, but most briefcase discussions were not centered around individuals who traveled a lot. Looking at all options up to $1K but best bang for the buck would be great. Thank you!