The 9551 swing bag is the new accommodating type of saddle bag that is mean only to strap on on side of the motorcycle. This model is meant for the left side of the motorcycle and it has a hardcase plastic shell on the backing to make a more solid design for protection of your valuables. The belt straps have a functional buckle and a quick release for easy access. This swing bag is made with heavy duty PVC material that is weather resistant and great for travel.