As others have stated, some colors run small and others fit true to size.
I bought the black/mustard combo in size large and right away I noticed that the mustard material was soft and stretchy and the black material was stiff and didn't have much give.
When I tried on both the black was tight around the hips and uncomfortable but the mustard fit great and were breathable.
So weird that two shorts of the same size and company would fit so differently.
I do like the length. I have a big butt so I need shorts that'll cover and these do the job. Too bad there's no XL or I would size up on the black.