Design: Thin, breathable membrane is 100% wind- and waterproof Highly stretchable material allows you to move freely In-Shoe Comfort: Helion™ superfoam with CloudTec® technology for unbeatable comfort Speedboard® technology converts soft landings into explosive take-offs Durability & Traction: Missiongrip™ outsole delivers enhanced traction and a grip-rubber compound to keep you sure-footed Additional Details: Buying a half size up in this model is recommended Best for: middle distances, tough and technical terrain Total recycled content: about 20% / Polyester: about 65% recycled Weight: 11.46 oz (325 g) Heel-toe drop: 6 mm