This vest is the same cut/size as our RMV0019 but is a lighter weight construction. All parts of the vest except the outsides front are made of 400 denier pack cloth, there is not attachment strapping on the front sides or the back of the vest and there is no front center cutaway option. The cummerbund release system uses a single back wire and the cummerbund sizing can be adjusted without having to disassemble the release.