Suitable for back carries tied with the DIDYMOS Baby Wraps, Didy Meh-Dais (DidyTais) and DidyKlicks. The DIDYMOS chest belt is an optional accessory for back carries if you do not want to cross or tie the shoulder straps over your chest. It makes sure that the straps do not slip down off your shoulders. Having tied the carry, you pass the belt parts around the straps, buckle and you are ready to go.