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Carbon Fiber Insoles vs Super Shoes: Worth Half the Price?
Carbon fiber insoles cost $95 to $149, while super shoes like the Nike Alphafly 4, Vaporfly 4 and Adidas Adios Pro 4 run $250 to $280. Insoles can supply a carbon plate's stiffness, but they can't copy the PEBA foam or rocker geometry that carry most of a super shoe's race-day benefit.
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