When buying a belt, it is important to select the correct size based upon an accurate measurement. Your belt size is not the same as your pant or waist size; because your belt goes around you and your pants, tucked in shirt, and your underwear. Your belt size is usually 1 or 2 inches larger than your pant or waist size. G-CODE belts are primarily designed as an outer load bearing belt to carry your holster, magazine carriers, blow-out kit and any other essential items needed. G-CODE belts can also be worn in your belt loops just to hold your pants up. That in mind to get a proper measurement for your belt size using a tape measure, measure around what you will be wearing to determine what size belt you will need in inches. G-CODE Belts are measured by the actual usable length of the belt inside circumference, with a 4 inch adjustment parameter. Example a Large belt inside minimum circumference is 36 inches and can be adjusted out to 40 inches. If your measurement is between 36 and 40 inches you will need a Large.