The i-Run team says
Technologies
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CMEVA Foam
CMEVA foam absorbs impact points and provides a stable base.
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Durabrasion Rubber
The Durabrasion rubber offers a solid balance between performance and durability.
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Gore-Tex Invisible Fit
The Gore-Tex coating is directly integrated into the upper to make the shoe as light and flexible as a standard model. This membrane offers durable waterproofing and increased breathability. Water stays out while sweat is wicked away.