The i-Run team says
Technologies
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Profil de semelle incurvé équilibré sous les métas
The geometry of the midsole with a curved profile under the metatarsals is designed to reduce fatigue and promote a smooth and predictable foot roll throughout the stride. The midsole geometry with a curved profile under the metatarsals starts further from the instep, with a transition zone placed in front of the metatarsal heads. This provides a more stable base for metatarsal support.
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Profly
This cushioning provides more flexibility at the heel to absorb shocks and more firmness at the forefoot for propulsion and energy return.
