So I received these trousers today. http://www.yoox.com/item/YOOX/COSTUM...834_50_5_2R_89
I decided the likelihood of the size 50 fitting me was slim (no pun intended), so I just went with the 48. It's actually slightly loose, but wearable. I measured it at a smidge under 34. Keep that in mind if ordering any of the CN range in that cut. Yoox has a lot of them right now. I wasn't overly impressed with the quality at that price. I bought a pair of grey wool Tonello pants that were cheaper and better IMO. But they look good and will be nice and cool in the summer. It's nice that the inseam was perfect and will not need altering.