The design features an upper inspired by European gothic armour and its structural, metallic properties. Open mesh underlays improve airflow. The midsole incorporates the tooling system from the Gel-Nimbus 17, featuring dual Gel technology inserts and a Fluid Ride cushioning structure. breathable mesh underlays Gel-Nimbus 17 tooling system Fluid Ride technology rearfoot and forefoot Gel technology dope dyed recycled sockliner mesh
