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
• FootShapeTM Toe Box with Fully Cushioned Zero Drop PlatformTM
• Stack Height: 21 mm
• Midsole: Altra QuanticTM
• Outsole: MaxTracTM Rubber with TrailClawTM
• 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
• Color: Neon / Blue