Altra Superior 4.0

Altra Superior 4.0

  • $135.99

Only 1 left!

MIDSOLE

  • Altra Quantic midsole balances cushioning and responsiveness while remaining lightweight. 
  • Inner Flex flex grooves system provides additional flexibility and cuts weight for increased performance.
  • Natural Ride System (NRS) design includes a more natural, foot-shaped last, zero millimeter heel to toe drop, and metatarsal-specific shapes in the outsole to assist in proper foot mechanics and allow for more natural foot movement. 
  • Natural Foot Design follows the natural shape of the foot for ultimate comfort.
  • Removable StoneGuard Rock Protection slips underneath the sockliner to disperse shock and protect the feet from rock-bruising. StoneGuard weighs 1.0 oz and is 1 mm thick (Men's size 9).

OUTSOLE

  • Trail Claw outsole design uses a sticky rubber multi-directional pattern, combined with updated lugs under the forefoot and claws under the toes to provide improved grip and stability on trails.
  • FootPod outsole design follows the natural construction of the human foot for maximum flexibility and a responsive ride.
  • MaxTrac Outsole uses anatomically-shaped sticky rubber that prioritizes grip and durability on uneven terrain.

UPPER

  • Quick Dry Air Mesh is updated for durability, wicking water away from your foot while remaining light and breathable.
  • Seamless Upper reduces irritation and provides next-to-foot comfort.
  • Gaiter Trap is a velcro strap that secures trail running gaiters to the shoe, preventing debris from building up beneath the shoe (matching gaiter sold separately).
  • Synthetic Overlays provide long-lasting support.
Weight: 8.5 oz / 240g (size 42,5 EU)

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