Merrell Agility Peak 4 Women's Trail Running Shoes Atoll : Stay protected on rugged terrain in the Merrell Agility Peak 4! This low-profile trail shoe gives you grip and cushion for off-road courses. The thick yet lightweight FloatPro(TM) foam midsole provides long-lasting cushion for your adventures. Enjoy strong traction on rocky surfaces under the VibramA(R) MegaGripA(R) outsole. For runners who want the best defense against bumpy trails, the Merrell Agility Peak 4 takes you to the top! Shoe Technology Upper: Jacquard upper with breathable mesh lining for comfort. Integrated lacing system secures a glove-like fit. Padded collar increases step-in comfort. Gaiter D-ring makes adding attachments easy. Protective toe cap adds durability. Rock plate improves protection. Midsole: FloatPro Foam(TM) midsole for a long-lasting, lightweight ride. FLEXconnectA(R) dual-directional flex-grooves enhance ground contact. Outsole: VibramA(R) MegaGripA(R) combines traction and durability for wet and dry surfaces.