TomasVThat doesn't actually address the question the guy asked, and it's a fair question because of that rather unusual silhouette shown in the photo (the pants without the model)--big on top, narrow on the bottom--like...maternity pants?
RayFIf we're talking about the fit itself and how they would fit someone who's maybe a bit stockier, they're definitely roomier in the top block and they taper after the knee -- they're basically made in a straight tapered fit, which is a very flattering fit across many body types.
I thought Brendan was wondering why certain sizes have a 32 inseam and then inseam gets only bigger as waist gets bigger. That's a stylistic choice they did to keep the look of these pants cropped/with very little break as much as possible.
As far as portly gents go, these come in sizes up to 42.