Phew! Russian men are built like s**t brickhouses. And those cheap, tight suits don’t hide that fact.
Well, my English failes me on the idiom but from what I have googled, this is about muscles and height-to-width proportions. This looks better to me, it's not about fat. As well as one can change clothes way easier than build a better body. Surely there're plenty obese Russians, but they're not of that degree of obesity which us common in the USA.