Smith Optics Jetstream TT Helmet Size:Small For the most custom fit

For the most custom fit

Flexible Nytex decking is forgiving and quiet when hiking in the cold

Designed for all-mountain riding

Padded waistband at the back for more comfort

Smith Optics Jetstream TT Helmet Size:Small For the most custom fitSustain 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