Slip-on style shoes with an open back and a closed front that are generally casual and comfortable. The sole is very rigid and traditionally made from wood, but modern styles also feature cork, rubber, or plastic soles.
Heels are shoes featuring an incline on the heel. Heels could be a separate piece from the outsole or a wedge heel that runs the entire length of the outsole. The heel provides elevation and can be found in many different shapes, including block, tapered, blade, and wedge. Heels can also be many different heights such as kitten heel, stilleto heel, low heel, mid heel or high heel.