Lately the trend for men clothes has been slim and skinny fit. As a guy with big butt and legs I have to buy most of my pants up a size and have the tailor make adjustments.
I'm 6' and wear 31W-34L trousers. My waist is good with a 30, but I can't get a 30 over my legs and butt. So I get a 31-34 and have a tailor shop take the waist in a bit.
When I was late teens and 20's, it seemed like we all had 28-32" waists. Every inseam length was available in those sizes. But now everyone is fat so 32-34 is kinda rare in the stores and I have to go on line to find 31-34.
This is more or less the story of my life when it comes to clothing.
Pants: 32W-33L. A difficult size to find (32L is too short, 34 often a hair long). Every time I shop for pants, especially work pants, they are sold out of 32W. Regarding work pants, why do carhartts seem to start at size 38W? Where are all these behemoths working in construction wandering around? Every time I buy a new tool belt, I need to make my own belt hole that's around 3" smaller then the smallest hole on the loop. I'm 6' and 190lbs for pete's sake.
Shirts: Large fits me nicely across the shoulders/chest, but makes me look like I'm wearing a pillow sheet across my stomach. Medium fits a little nicer around my mid section, but is too tight across the shoulders/chest. I have long arms so mediums are usually way too short, and for almost every shirt I own, I end up buying a large and having a tailor take it in bit.