A shoe is an item of footwear intended to protect and comfort the human foot while doing various activities.
Footwear refers to garments worn on the feet, which originally serves to purpose of protection against adversities of the environment, usually regarding ground textures and temperature.
Shoes are also used as an item of decoration.
The design of shoes has varied enormously through time and from culture to culture, with appearance originally being tied to function.
Additionally, fashion has often dictated many design elements, such as whether shoes have very high heels or flat ones.
Fashion is a popular style or practice, especially in clothing, footwear, accessories, makeup, body, or furniture.
A heel is the projection at the back of a shoe which rests below the heel bone.
Contemporary footwear varies widely in style, complexity and cost.
Basic sandals may consist of only a thin sole and simple strap.
Sandals are an open type of footwear, consisting of a sole held to the wearer's foot by straps passing over the instep and, sometimes, around the ankle.
High fashion shoes may be made of very expensive materials in complex construction and sell for thousands of dollars a pair.
Construction is the process of constructing a building or infrastructure.
Other shoes are for very specific purposes, such as boots designed specifically for mountaineering or skiing.
Skiing is a mode of transport, recreational activity and competitive winter sport in which the participant uses skis to glide on snow.
The term mountaineering describes the sport of mountain climbing, including ski mountaineering.
Traditionally, shoes have been made from leather, wood or canvas, but are increasingly made from rubber, plastics, and other petrochemical-derived materials.
Natural rubber, also called India rubber or caoutchouc, as initially produced, consists of polymers of the organic compound isoprene, with minor impurities of other organic compounds plus water.
Plastic is a material consisting of any of a wide range of synthetic or semi-synthetic organic compounds that are malleable and can be molded into solid objects.
Canvas is an extremely durable plain-woven fabric used for making sails, tents, marquees, backpacks, and other items for which sturdiness is required.
Though it has evolved over hundreds of thousands of years in relation to vastly varied terrain and climate conditions, the human foot is still vulnerable to environmental hazards such as sharp rocks and hot ground, against which, shoes can protect.