This is a nice light material. Very loose around the crotch, thighs and legs.
I'm a size 44 but is fairly loose, I'd order a size down since there's no elasticity around the waste, the size 44 seems like it can fit a size 46.
Minus 1  for the belt, if you put any stress on the belt, the rectangle loops twist long ways.
But I would definitely order another pair, but I'd order a size 42.