The i-Run team says
Technologies
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ADAPTER-FLEX
ADAPTER-FLEX groove that allows it to adapt and respond to the terrain with the kind of agility usually reserved for trail shoes.
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GRAPHENE-GRIP
The GRAPHENE-GRIP rubber ensures exceptional traction along with perfect adhesion.
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Flyspeed
The nitrogen-infused Flyspeed foam provides powerful energy return, exceptional lightness, and long-lasting cushioning.
