My weight fluctuates quite often and my pants are usually between 30 and 33 inches. My current pant size is 32, but they are a little loose. I ordered a 34 inch belt and the size seems great. From the looks of it, it should work up to 30 and at least 33. On smaller waist sizes, the extra length can make fastening difficult as it interferes with the belt loop, but so far so good. move during the day. The strap material is a little thick, but I know the feel of gun straps. It actually provides a good grip when initially pulling up the pants and tightening the belt. Overall I have yet to find any fault in the strap for my use. The lack of metal saved my life with my skin condition and should also help avoid damage to the tank when testing customer bikes. I am very happy with this purchase.