Yes, we do sell slide buckles and make slide straps.Slide Buckles: slide buckles can be found in our Belt Buckles collection.Slide Straps: we have standard widths available in calf, lizard, and alligator in our Specialty Straps collection. To order a slide strap for a buckle you already own, we recommend contacting customer service and mailing the buckle to us to ensure an optimal fit.