Tri-Tension is especially designed for use in our shoes that have a 1/3 (or less) outsole. Simply, it holds the foot from below like a big hand and acts like a power transfer from the toes to the heel.
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Tri-Tension is especially designed for use in our shoes that have a 1/3 (or less) outsole. Simply, it holds the foot from below like a big hand and acts like a power transfer from the toes to the heel.