Description Sustain your speed when every second counts. Our top-performing time-trial helmet, the Smith Jetstream TT has a lightweight aerodynamic design ideal for race day. Zonal KOROYD® and Mips® come together to provide energy-absorbing impact protection so you have full confidence as you maintain your momentum through the toughest sections of the course. A magnetic visor makes it easy to switch between a color-enhancing ChromaPop™ lens or a clear option. Five strategically placed vents help keep you cool without adding drag so you can put all your focus into securing your place on the podium. Product Details Protection Zonal KOROYD® coverage for lightweight, energy-absorbing and ventilated impact Protection Mips® Brain Protection System reduces rotational forces caused by angled impacts to the head Complies with U.S. CPSC Safety Standard for Bicycle Helmets for Persons Age 5 and Older as well as CE EN 1078 Fit / Integration VaporFit dial adjustment system offers 270-degree fit adjustment with the turn of a dial Low-profile Y-strap divider provides a secure fit to reduce wind noise and aerodynamic drag Magnetic visor with option of ChromaPop™ or clear lenses, ChromaPop™ lenses enhance contrast and natural color to make the details pop Features Five strategically placed vents for optimal airflow Ionic+® antimicrobial lining offers sweat-activated odor control Lightweight, low-bulk single layer webbing Weight: (Size M, Mips®): 14 oz / 410 g What's Included Smith hard case with spare lens holder Two lenses: ChoromaPop™ lens (installed) and bonus Clear lens