These are vinyl material, black in color. It is safe to say these are “Thigh High Boots.” They go up to thigh level; of course the exact location the boots reach differs on who is wearing them, their personal height and measurements, etc. It has to be laced up in the back, resembling a pair of shoes or a corset. It is nice that it also has a zipper on the inside, hidden from view. This allows you to arrange them to fit perfectly. When it is time to take them off, simply unzip and keep it laced up for next time.
These are a size 6M. The box that they will arrive in is not their original box. Make sure to find the size inside the boots instead of on the box.