Oakley HSTN (52) Matte Carbon Prizm Ruby heart rate monitor Its simple design fits most

Its simple design fits most bikes and mounts easily

5mm steps (With Extensions at 100mm)Armrest Stack: 59mm (no riser kit) to 130mm in 5mm increments (With aftermarket Riser Kit)Extension Width: 100mmHandlebar Clamp: 31

The Performance Line shows how ergonomics can win races

Updated with Mud-release channels and compatible with 12 speed

Oakley HSTN (52) Matte Carbon Prizm Ruby heart rate monitor Its simple design fits mostOakley melds progressive design with heritage features in HSTN, a gender neutral sunglass with striking modernized circular lenses. HSTN features Prizm Lens Technology and a modernized trigger stem (influenced by Oakleys Razor Blades, an homage to the brands past). A lightweight and durable O Matter frame helps provide all day comfort and comes in two sizes for a more seamless fit. HSTN is available with Oakley Authentic Prescription lenses