The Superior is Altra’s minimalist trail running shoe that trims it all away in the name of speed. If you’re pushing for your fastest single track laps, this is the shoe. With a 21mm stack height, there’s just enough cushioning for a responsive, sensitive ride. Just like previous Superiors, this updated version for 2021 includes a removable rock-plate, which can be inserted under the insole for added protection. Further refinements include toughened material on the uppers to increase durability, and a refactored tread pattern made from MaxTrac sticky rubber. The Superior also makes an awesome lightweight everyday shoe for around town or training in the gym.