Impulse Flash


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The Altra Impulse Flash is a perfect blend of flashy reflectivity and lightweight dynamic support. Like the original Impulse, the Impulse Flash features Innerflex™ and StabiliPod™ technologies to give you flexible support where you need it, but the upper is made of an entirely new, fully reflective material for style and safety in low-light situations. The friction-free, lightweight upper and FootShape™ toe box keep your feet comfortable whether you are running, working out at the gym or walking the dog. The fully cushioned Zero Drop™ platform encourages a more natural, low-impact foot strike and features a lightweight, responsive A-Bound™/EVA blend midsole.
Cushioning: Moderate
Weight: 8.6 oz. / 244 g

Technical Specs

  • Other Features: Asymetrical Lacing System
  • Ideal Uses: Running, Racing, Training
  • Insole: 5 mm Contour Footbed
  • Platform: Fully Cushioned Zero Drop™ platform and FootShape™ toe box
  • Stack Height: 26 mm
  • Midsole: Ultralight EVA with A-Bound™ Top Layer, StabiliPod™ Technology
  • Upper: 360° Reflective Upper
  • Last: SL2-M / SL1-W
  • Outsole: FootPod™ Technology
  • Designed To Improve: Improve Running Form, Assist Fallen Arches, Excessive Pronation
  • Cushioning: Moderate
  • Weight: 8.6 oz. / 244 g

Customer Reviews