as is the outsole

Heel-to-toe smoothnessNew heel and forefoot midsole geometry shaped for a super smooth ride

Designed for racing

with racer back ring detail offers additional stability and support

improve circulation and increase endurance

Men's Altra Superior 6 US Size:13.0 as is the outsoleIntroducing the new Superior 6, designed with everything you need and nothing you dont. Ready to connect with the dirt for fast trail excursions. This trail runners light weight construction makes for the perfect option when it comes to speeding things up. Equipped with a MaxTrac outsole for traction on the trails, this Superior is your go to for your daily trail outings. 269. 3 g