“I own quite a few slim and tapered pants (Levis 502 & Wrangler cargos mainly), but unfortunately these slim Layover Travler's are way too tight in the calves. I assumed they'd fit similarly, but they're uncomfortably tight. The website says the leg opening is 14", and I just measured my calf circumference as 15.5", so, yeah. Other than that the size 31 fits my 5'11" 160lb body great: perfect length, waist, crotch, and nice material. MEASURE YOUR CALVES, PEOPLE! Especially if you work out. :)”