Designed to handle any kind of terrain, the Altra Superior 5 is a fast, nimble, and lightweight trail running shoe. Sporting the brand's signature 0mm drop and a wider, foot-shaped toe box, the Superior 5 gives runners a natural ride while flying down dirt-covered switchbacks or cruising along open fire roads. The Superior has Altra's "Standard" foot shape which is right in the middle of the "Original" and "Slim" options. What You'll Love Durable and secure upper Removable StoneGuard Lightweight and grippy underfoot feel The Altra Superior 5 is a lightweight trail shoe with a connected to the ground feel. The Quantic midsole feels responsive and lightweight. The MaxTrac outsole with multidirectional lugs provides great traction, and the removable StoneGuard adds extra protection from rocks and roots. Complete with an improved upper that offers a velcro gator attachment and locked-in fit, the Altra Superior 5 is a great option for trail runners looking for an agile shoe with a natural running feel.