Superior 4.5

Superior 4.5

from Altra

  • $110.00

Lightweight. Fast. Grippy. Fast. Responsive. Fast. There are many words to describe the speedy Superior 4.5. The Quantic‚Ñ¢ midsole offers a lightweight yet responsive ride for high-speed trail days. TheMaxTrac‚Ñ¢ outsole and multi-directional lug pattern brings grippy traction to any terrain. The improved upper brings better breathability and durability. And finally, the removable StoneGuard‚Ñ¢ offers lightweight rock protection for when the trails get extra rugged.


    • Places your heel and forefoot the same distance from the ground to encourage proper, low-impact form throughout your run.
    • Allows your toes to relax and spread out naturally for more comfort and stability.
  • FIT4HER‚Ñ¢
    • The Fit4Her‚Ñ¢ technology means we customize every women's shoe to the unique anatomy of the female foot.
    • Grid-like grooves in the midsole allow your foot to flex while being lighter, for more speed and better performance.
    • Hook-and-loop tab allows strapless gaiter attachment that prevents debris from building up beneath the shoe.
    • Canted lugs positioned strategically beneath the metatarsals to provide traction at toe off.
    • A perfect combination of grip, traction and durability that will eat up gnarly terrain like a boss.
    • Quantic‚Ñ¢ was inspired by a desire to combine the plush feel of Altra EGO‚Ñ¢ with a lightweight ride, it cushions every step and floats over any surface


  • Weight: 7.0 oz / 198 g
  • Insole: 6 mm Contour Footbed with removable StoneGuard‚Ñ¢
  • Midsole: Quantic‚Ñ¢ with InnerFlex‚Ñ¢
  • Outsole: MaxTrac‚Ñ¢ Rubber with TrailClaw‚Ñ¢
  • Cushion: Low
  • Stack Height: 21 mm
  • Upper: Seamless wrap-around engineered knit

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