This Kirby Morgan neck ring assembly comes with a neoprene neck dam and is used in the KM-17K, KM-37, KM-37SS, and KM-97 helmets.

Options:

505-745 Small Neoprene Neck Ring Assembly (For KM-17K, KM-37/SS, KM-57, KM-77, KM-97)

505-746 Medium Neoprene Neck Ring Assembly (For KM-17K, KM-37/SS, KM-57, KM-77, KM-97)

505-747 Large Neoprene Neck Ring Assembly (For KM-17K, KM-37/SS, KM-57, KM-77, KM-97)

505-749 Extra-Large Neoprene Neck Ring Assembly (For KM-17K, KM-37/SS, KM-57, KM-77, KM-97)