FEATURES: 1. OFIT Insole: proprietary insole is what we’re known for. Molded to match the specific shape and construction of every pair we make, this purpose-designed technology delivers the kind of fit, feel and performance that’s unmatched in the industry. 2. A3 Chassis: Independent TPU stabilizers provide torsional flex and allow for natural articulation while the single density EVA throughout provides cushioning and comfort. 3. A3 Chassis Integrated Shank: The integrated shank reduces weight while providing proper support and flex points. The ESS forefoot plate mitigates over-flexion and protects from stone bruising. 4. Tempest Outsole: Tempest outsole reduces weight without compromise, featuring multi directional and perimeter lugs for traction, and active flex grooves for freedom of movement.