The term comfortable, as employed in the footwear industry, refers to footwear specially designed to provide adequate foot support or relief from discomfort when walking or running. The signature features of comfortable footwear are padded footbeds, broader toe boxes, contoured footbeds that follow the shape of the foot, shorter heel heights, flexible soles, greater arch support, polyurethane outer soles, and in some cases, rubber nubs on the soles to increase traction.
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.