The Model 21 Open Top Magazine Pouch is uniquely designed as an inside the waistband pouch. It contains a single belt loop strap to secure the pouch around the belt, and can be angled for right or left hand carry. It complements the design of and works well with the Bianchi Model 100 Professional holster, but will work well with any concealment holster. It fits up to 1.75 in. (45 mm) belts and is available in premium full grain leather with a plain tan finish.