Design: Quick-dry air mesh upper Lightweight, seamless construction provides durability and a secure fit In-Shoe Comfort: FootShape(TM) comfort gives your feet more space to sit naturally and is deisnged to address the biological differences in men's and women's feet Balanced Cushioning(TM) platform positions your heel and forefoot at an equal distance from the ground, encouraging better alignment and form and a low impact landing Altra(R) EGO(TM) midsole foam is designed to provide added energy return and a responsive, yet soft, comfortable feel Durability & Traction: MaxTrac(TM) outsole with a multi-directional lug pattern provides grippy traction in any condition Additional Details: Weight: 11 oz / 314 g Stack Height: 25 mm