perfect for any summer outdoor activity

This mid-layer offers just the right amount of features and comfort

RDS-certified down

without too many frills

hem and cuffs

oakley hstn sq matte rootbeer frame prizm tungsten lens ZFHS107 perfect for any summer outdoorSubtle 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