Tackling the rough terrain of a trail takes hard work and pure grit. Breathable mesh upper features a wraparound Nav Band for a secure, glove-like fit. BioMoGo DNA for customized cushioning and responsiveness. Omega Flex Grooves encourage a smooth, natural running gait. Tuned Density Midsole System changes midsole density based on the weight and gender of each individual runner, providing the best cushioning possible. Ideal Heel encourages contact points to shift forward, properly aligning your center of gravity. BRS (Ballistic Rock Shield) for protection from trail debris. 3D hex lug configuration for extreme traction on any surface. Wt. 10.1 oz.