Features of the Louis Garneau Men's Copal Boa Shoe Bounder Upper all seamless for comfort to prevent pressure points BOA L6 micro adjustment Integrated X-Comfort zone for large range of feet width New ergo air stream Outsole, fiberglass injected, nylon Outsole with constant ventilation to reduce fatigue and numbness Higher arch support for better support Ventilated insoles for constant air flow Reflective heel cup for safety