highly ventilated trail and enduro helmet

High-quality functional fabrics and the additional protective stand-up collar ensure optimal wearing comfort

maintaining its fit and technical performance over time

Happy running

the longsleeve is suited to sweaty

oakley hstn sq matte black frame prizm grey lens Color:prizm grey highly ventilated trail and enduroSubtle doesnt have to mean boring. A squared off silhouette with modular color play sharpens the original HSTN attitude, while premium metal details keep the look elevated. FEATURES O Matter Frame: Oakleys injection molded thermoplastic frame material provides improved strength and flexibility over traditional acetate, and is built to withstand from shifting or deforming over time Unobtainium Nosepads: Unobtanium is the first innovative material