Cowhide: Cowhide makes the sports belt durable and provides users with a soft and strong fitness belt for weightlifting, workouts and workouts.Steel Buckle: Highly durable steel that keeps the men's weightlifting belt in place during workouts, workouts and training.Measurement technology:Relax and exhale, then pull the tape measure up to your waist and through your belly button to find your true waist size.don't want:Do not measure or blow on your belly button from above.Do not inhale or inhale before the measurement.important:If your waist is between sizes, choose the larger size for maximum comfort and practicality. For example, if you have a waist of 29 and are a medium (M) and large (L) belt size, choose the large (L) belt size.Reminder: Please check the size chart before completing your purchase.