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Superior 4.0

The Superior 4 takes an already lightweight, fast trail shoe and makes it even lighter. The upper has been completely redesigned in a wrap-around style for added security and support; the midsole features Altra’s proprietary Quantic™ foam, while the outsole is now made of our sticky MaxTrac™ rubber. To top it off, the rounded heel and improved lug pattern is made to fly down the trail with ease and speed.


  • Insole: 5 mm Contour Footbed

  • FootShape™ Toe Box with Fully Cushioned Zero Drop Platform™

  • Stack Height: 21 mm

  • Midsole: Altra Quantic™

  • Outsole: MaxTrac™ Rubber with TrailClaw™

  • Upper: Seamless wrap-around engineered knit

  • Insole: 6 mm Contour Footbed with removable StoneGuard™

  • FootShape™ Toe Box with Fully Cushioned Zero Drop™ Platform

  • Stack Height 21mm

  • Midsole: Quantic ™ with InnerFlex™

  • Outsole: MaxTrac™ with TrailClaw™

  • Upper: Wrap-Around Knit

  • Weight: 7.9 oz. / 224 g