Bought this to replace my last nylon belt I wore out working wildfire. Its the perfect work belt, doesn't stretch when wet or come loose. I ideally wear a 33" waist pant and bought the M (32-34") belt. Fits just fine but if you like a longer belt tail to tuck into the loops I'd size up. It can always be cut to preferred size too. Love the customer service at Stapleton's too. Original colour I ordered was out of stock. Gail emailed me and got a new colour shipped that same day!