the denim used on the 3001 and the like doesn't really stretch that much. if i had to do it again, i'll buy a pair that's 1" larger than my actual measured waist size, and give it a good initial soak. the 3001 cut fits tight on the thighs anyway so a larger-than-usual size for you is still a safe bet (e.g. my case: 30w for apc ns, 31 for skull 5010, and should have been a 32 (or maybe even 33) for fh3001, as my 31 is tight.) one thing about that denim, though, it feels nice to the skin, so even worn tight, it doesn't feel like you'll get a rash or something like that.