I got the belt. There are four pieces of plastic, but they are very soft and flexible-do not interfere. The belt does not slip, it sits like a glove. I'll try to wear this size.
A good corset, at the waist 70-s came well, so far I fasten on the last row, pulls, but I breathe normally, the color is flesh, under the clothes is not visible. While I like everything, I bought it for a sick back, so that it was easier