Aerodynamics was the top priority in the development of the KASK Utopia. Suitable for road racing and triathlon, the Utopia is the top choice around the globe – thanks to its optimized design, it keeps athletes cool, especially at high speeds. Its breathable and quick-drying padding made of 5 mm thick Resistex® absorbs moisture and channels it away from the athlete's head to the helmet's outer shell. This makes the Utopia comfortable even during long rides. Super lightweight, only 235 g in size M Ventilation openings optimized for aerodynamics and cooling Reduced noise generation around the ears due to decreased wind resistance Redesigned inner channeling for improved ventilation and optimal aerodynamics With the renowned KASK Octo-Fit closure system -6 W @ 50 km/h S = 50–56 cm M = 52–58 cm L = 59–62 cm