The i-Run team says
Technologies
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PUMAGRIP
PUMAGRIP rubber for maximum traction and durability during movements.
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NITRO
Advanced technology providing superior responsiveness and cushioning without compromising on lightness, offering a less painful run. The process begins with a small embryo containing high-quality raw materials. The embryo is injected with Nitrogen (nitrogen) in a supercritical state to expand and become extremely light. The expanded part is compressed into the final midsole design.
