No metal parts. It will pass through sensitive metal detectors without beeping. One piece of full grain leather with authentic carbon fiber buckle. Proudly handcrafted using only the finest materials. Carbon fiber's strength, light weight and unique fashionable look makes it popular in aerospace, exotic cars, motorsports and other competitive sports. Anti-allergic. Stylish to wear with jeans or slacks. Available in Big &Tall sizes. Please carefully select the size based on the pant size range before placing the order. It is accurate based on the pant size that you wear. No APO or DPO addresses please. Please use your international address if ordering from outside the U.S.