The Wasabi ensures temperature regulation like no other helmet thanks to its adjustable airflow system. With the push of a finger, a centralized vent can be opened when conditions heat up or closed when they cool down for a 1.5°C internal temperature increase when riding at the same speed. Wind tunnel testing confirmed that less than one watt was lost between an open and closed vent when riding at a speed of 50 km/h. Impressive aerodynamic and ventilating features together with a premium Merino wool lining for protection against temperature fluctuations put the Wasabi in a class all its own.
Wore it once and I didn't like the way it fit my head.
For more info:
https://www.kask.com/en-us/Wasabi/CHE00093-CPSC-WG-211.56.html?srsltid=AfmBOorfzAZZCAZQPPGgnjxeBz8dydShWNhYBuuj704Kn1eSRUecbCn_