Updated Review 4/10/14:  I just bought 2 more of the Lee Compound Zipper Cargo in "military" color and 2 in "smoke camo." Just a quick note - the smoke camo do fit just a bit larger in the waist than the other colors - and that's consistent with all 3 pairs I have.  All my 30" Lee cargo shorts fit are just short of 'snug,' and the smoke camo have a little wiggle room.  Hope that helps!  Of the two styles I purchased I prefer the Lee Compound over the Wyoming.  The compound zipper is a little lighter weight material and they don't feel heavy on me.  I rarely wear my wyoming shorts, but wear the compound zipper all the time...  so I bought 4 more pair.  Still love 'em!
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Original Review:
The waist on the 30" fit my waist, but I have thick thighs & glutes, so I went with the 32" and they are absolutely perfect.  The 32" hits right at my knee, perfect fit through the thighs, and just the perfect amount of room in the waist. NOTE on the color: Military is more of a brownish hue than green.  If you're looking for a green military short, go with the 'Jungle' color in the "Wyoming" Lee Cargo. Both the "Wyoming" and the "Compound" are 100% cotton and shrink just a smidge, but the "Compound" feels like a slightly lighter weight than the "Wyoming" and the cargo pockets have a different layout.  I'd suggest trying one of each and seeing which you like best.  I ended up with 2 pair of "Compound" and 5 pair of "Wyoming".  I LOVE them!