If you think of a spool of thread, you may understand the concept of spool heels. The heel is thicker at the sole of the foot, narrow in the middle, and then comes back out at the base
Shoes below in this category are especially for formal event. In the formal event, you need to be decent and delicate, but at the same time ,you need to tell everyone presented who you are. So , a perfect shoes is must. Every shoes here are elegant and classic, enough to be impressive.