Ride with confidence in any race with the Smith Jetstream TT road bike helmet, designed for the most demanding time trials. Its aerodynamic and lightweight design helps maintain your speed and comfort, while the Zonal Koroyd® and MIPS® brain protection system provide optimal impact protection. Easily switch lenses with the magnetic visor, featuring a ChromaPop™ option for enhanced visibility. The five strategically placed vents and Ionic+® antimicrobial lining keep your head cool and odor-free, while the VaporFit™ adjustment system ensures a perfect fit. Zonal Koroyd® coverage for lightweight, energy-absorbing, and ventilated impact protection. The MIPS® brain protection system reduces rotational forces caused by angled impacts to the head. CPSC and CE EN 1078 certified The VaporFit™ adjustment system offers 270-degree fit adjustment with a simple turn of a dial. Low-profile Y-strap divider provides a secure fit to reduce wind noise and aerodynamic drag. Magnetic visor with ChromaPop™ or clear lens options, ChromaPop™ lenses enhance contrast and natural colors to make details pop. Five strategically placed vents for optimal airflow Ionic+® antimicrobial lining offers sweat-activated odor control. Lightweight, low-bulk single-layer strap Weight: (Size M, MIPS®): 410 g Smith hard case with spare lens holder Two lenses: ChromaPop lens (installed) and bonus Clear lens. Smith Jetstream TT - Road bike helmet | Hardloop