Takeoff with the re-engineered Altra® Superior 4 trail running shoes. Predecessor: Superior 3.5. Support Type: Neutral. Cushioning: Moderate. Surface: Trail/Road. Differential: 0 mm. Altra® recommends that those new to natural running and zero-drop footwear transition slowly by wearing these on shorter runs and gradually building up to regular mileage. Wrap-around knit uppers provide added security and support. Lace-up closure. Lightly padded tongue and collar. 6mm contoured footbed with removable StoneGuard™ insole. FootShape™ toe box allows the toes to relax and spread naturally for optimal comfort, speed, and stability. Zero Drop™ Platform places your heel and forefoot the same distance from the ground to encourage proper, low-impact form during trail runs. Quantic™ foam midsole with InnerFlex™ grid-like grooves for added flexibility. MaxTrac™ sticky rubber outsole with TrailClaw™ canted lugs positioned strategically beneath the metatarsals to provide traction at the toe-off. Total Stack Height (total thickness of midsole and outsole underfoot): 21 mm. Imported. Measurements: Weight: 10 oz Product measurements were taken using size 11.5, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.

• Is Discontinued By Manufacturer ‏ : ‎ No
• Department ‏ : ‎ mens
• Date First Available ‏ : ‎ December 5, 2018
• Manufacturer ‏ : ‎ Altra Footwear