Wear the Nike Structured Training Belt 3.0 during all of your weight-lifting sets. Since it's shaped anatomically correct, it helps promote proper lifting techniques. The belt is made from a durable polypropylene blend with a steel roller buckle to keep it firmly in place and supportive as you train. It also features a perforated back panel and cooling ventilation channels to help prevent you from overheating. Nike Structured Training Belt 3.0 Black/White, X-Large - Exercise Accessories at Academy Sports