Simple yet striking satin contouring flatters your shape. Transparent tulle is lightweight and breathable, yet strong and supportive [no movement when walking].
Eloise's fit notes: The fit is larger than average on the back, so [if possible] take a size down. Unfortunately the brand does not produce a 30 back, so if you usually take a 32, you may need to start wearing the bra on the second set of hooks and not the loosest as we'd usually recommend. If you do decide to take a back size down then take a cup size up, so we would recommend a 34C takes a 32D.
The cups are a fairly good average measure, if not a little bit larger than average. If you sometimes take a smaller cup size [and are taking you usual back measure], then go for that rather than the larger. When you try the bra on for the first time, ensure your nipples sits as close to the contour cross point as possible to reach the optimum fit.