A shoulderblade jacket is something every girl should have. But they are not always buttoned up in front. If that is inconvenient place a chain to connect the sides.
A chain might be a delicate one or a heavy one. But keep in mind it being strong enough. Basically the details used are the back of a choker (clasps, chain, rings, carabin). In this way, with a shirt, your chest is an incredible place for more chain jewelry.