The i-Run team says
Technologies
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XT-900
Rubber and carbon sole with remarkable traction power without sacrificing durability.
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PWRRUN+
The PWRRUN+ cushioning provides the comfort and energy you need to cover as many miles as you desire.
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FORMFIT
The FORMFIT system addresses every point of contact with the foot, far beyond the laces, to ensure a customized fit and feel.
