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.
- FOOTSHAPE™ TOE BOX Allows your toes to relax and spread out naturally for more comfort and stability in uphill climbs and downhill descents
- ZERO DROP™ PLATFORM Places your heel and forefoot the same distance from the ground to encourage proper, low-impact form throughout your trail run.
- GAITERTRAP™ Hook-and-loop tab allows strapless gaiter attachment that prevents debris from building up beneath the shoe
- TRAILCLAW™ Canted lugs positioned strategically beneath the metatarsals to provide traction at toe off.
- Heel Drop: 0 mm
- Weight: 424(pair)
- Footbed: 5 mm Contour Footbed
- Sole: MaxTrac™ with TrailClaw™
- Midsole: Quantic ™ with InnerFlex™