Belt Sizing Info... Start with "TRUE" waist/pant size!!! Zep Pro measure their belt from the end of the leather wrapped around the buckle to the middle hole on the opposite end of the leather tab. For example: a belt size 36 measured from the end of the leather wrapped around the buckle to the middle hole... that length is appx. 36-37". Another example is a belt size 38 measured from the end of the leather wrapped around the buckle to the middle hole... that length is appx. 38-39". (see additional photo)