HD15030T can be separated into HD15030TB and HD15030TD. "TB" is made from Taiwan TPU material while "TD" is made from Germany raw material. Generally, we will recommend "TD" for customers rather than "TB". Because "TD" will have better performance than "TB". For example, because of the stable performance of TPU material, clear elastic band made from Germany material have better transparency, resilience, anti-yellowing performance and aging resisting performance.
Some customers use 15 mm wide clear elastics for invisible bra straps. And some other customers use clear band in this size for sewing in the back of invisible bras. As back bra strap, clear elastic bands can be designed in different style. Here we have an article talking about design of clear back bra straps.