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Blown Rubber :
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Rubber compound which is mixed with air for decreased weigh and increased cushioning.
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Carbon Rubber :
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Rubber with a carbon additive to increase durability. It is denser and heavier than blown rubber. Used in high impact areas.
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Dual Density EVA :
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Two densities of EVA located on the medial side of the midsole that when combined create a smooth, supportive ride.
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EVA :
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Ethylene Vinyl Acetate is the most common midsole compound used in running shoes. This shock-absorbing foam is soft, light, and flexible.
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Flex Grooves :
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Midsole and outsole notches to allow the shoe to bend and flex properly with the natural motion of the foot improving forefoot flexibility.
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Heel Counter :
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Device created to reinforce the heel and prevent excessive heel motion.
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Heel Height :
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The height your foot sits on top of the midsole and outsole.
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Heel-Strike :
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The point where your heel makes contact with the ground.
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Last :
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The mold on which a shoe is constructed. The last can be straight, semi-curved, or curved.
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Lateral :
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The outside edge of a shoe.
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Medial :
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The inner side (arch side) of a shoe.
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Medial Post :
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Dense material used to increase the firmness and support through the medial area of the shoe.
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Medial Support :
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Support provided around the inner side (or arch side) of a shoe.
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Midsole :
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Cushioning layer of foam between the upper and the outsole.
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Outsole :
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The part of the shoe's sole that touches the ground. Usually made of carbon or blown rubber.
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Overpronation :
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Pronation is a normal foot motion, but overpronation is excessive pronation. This process is the leading cause of running injuries. Overpronators need shoes (shoes in the Stability, Cushioned Stability or Motion Control categories) which help guide foot motion.
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Polyurethane :
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Very durable midsole material.
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Pronation :
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As the foot strikes the ground, starting from the heel and rolling forward through the arch and onto the toes. The heel and ankle roll inwards after the heel strikes the ground, and as weight is transferred to the midfoot, the arch flattens out. Pronation is normal and is how the body handles impact.
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Rigid Foot:
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Feet that are stiff and hard to flex.
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Sock Liner :
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Material insert added to cushion and protect your foot from the shoe's midsole.
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Supination :
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During the gait cycle the ankle rolls outward when you're running. This is a very rare occurrence and such runners should consider running shoes from the Cushioning category.
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Toebox :
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The part of the shoe that encases your toes.
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Underpronation :
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The foot is not pronating enough through the gait cycle. These runners should look in the Neutral category for running shoes.
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Advanced :
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Advanced but not top of the line technology. This does not mean cheap, we only carry superior products to assist with happy, healthy running!
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Ultimate :
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Top of the line technologies to assist in happy, healthy running for those who are willing to pay more for the best materials.
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