Simply the Best Weight Lifting Belt I’ve ever owned! I’m 5’7 143lbs, I ordered the Small size and still have another slot to go up, no excess leather on my waist, a perfect fit! The Medium would have been good also, but I’m glad i ordered the Small size, the 3inch width still feels very secure on my Squats. The strengthshop size guide is accurate, if you’re between sizes go up a size if you’re planning to bulk for a broader size range, if on a cut go down, remember you will lose range size going...