The i-Run team says
Technologies
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Gore-Tex
High-performance technology ensuring the shoe's waterproofing while maintaining its breathability.
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FloatPro
FloatPro? foam midsole for a light and durable stride.
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Vibram EcoDura / EcoStep
Ultra-resistant rubber that ensures optimal durability and excellent grip. The EcoDura™ outsole is made of 30% recycled rubber.