100% genuine leather with protective PU film to guard against moisture. Slanted front and back walls reduce wind resistance. Easy Access Clips under the belt buckle for quick, hassle free access. Hard plastic shell helps retain shape of the bag. Heavy tough plastic back plate. Adjustable saddle mount. D rings around back periphery for additional securing options. Heavy re-enforced zippers with double stitching for added strength. Carrying handles on both side bags. Non-rusting and non-corroding hardware and genuine YKK zippers. Do not load more than 7.5 lbs each side.