Weight: 9.9oz. / 281gm UPPER HydraMAX™ collar lining- A superior lining material that has great moisture-wicking properties as well as a plush hand feel ComfortLite Sockliner™- Molded sockliner contoured to cradle the heel, support the arch and reduce peak pressures in the forefoot. Built from premium EVA for an exceptionally responsive feel Air Mesh Upper- Provides lightweight breathability MIDSOLE PowerGrid™ (heel-to-toe insert)- Powerfoam material is integrated with GRID technology to create a system that effectively centers the foot, absorbs impack and distributes pressure, resulting in an exceptionally smooth and responsive ride SRC™ Impact Zone- Super Rebound Compound provides durable shock absorption in the heel crashpad to help reduce torque and allow for a smooth transition into the midfoot< OUTSOLE iBR+™- 33% lighter and provides more cushioning compared to standed blown rubber XT-900™- Premium carbon rubber outsole material that offers exceptional traction properties without sacrificing durability