The AT Tread outsole provides versatile traction during both on and off-road activities. These Grey New Balance NITRELv4 men's running shoes are equipped with an AT Tread outsole, which helps to provide the enhanced traction and impact support you need out on the trails. The DynaSoft cushioning provides plushness and responsiveness. The engineered mesh construction adds breathability while keeping the design durable enough to withstand daily wear both on the street and on rough terrain. DynaSoft midsole and EVA insert for cushioning and support. EVA foam insert increases comfort. With lace closure, Lightweight engineered textile/synthetic mesh upper and no-sew overlays for improved durability.