Design
The front of the sole features a rigid or semi-rigid spike plate containing between 3 and 9 threaded holes called spike wells. Spikes can be screwed into each well using a spike wrench. With the exception of high jump and javelin shoes, track shoes generally have no spike wells along the mid-foot or heel. Some shoes have permanent or "fixed" spikes which are not meant to be removed.
Track shoes are exceptionally light, some shoes weighing less than five ounces (142 grams) each, half the weight of many standard running shoes. However, as this is achieved through reducing the amount of material used in the soles and sidewalls, spikes offer less cushioning and support than a standard running shoe. Thus, constant use in training may result in the shoes not lasting as long.
In most track shoes, the toe region bends up to allow space for protruding spikes and to encourage athletes to run on their toes. This upward angle, known as "taper," varies widely depending on the intended use of the shoe, and the taper angle can be rigid or flexible. Shoes with a large taper are said to be "aggressive."
Read more about this topic: Track Spikes
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—François, Duc De La Rochefoucauld (1613–1680)
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—Henry David Thoreau (1817–1862)
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—Robert Frost (1874–1963)