Oakley Sutro Lite OO9463 4739 Olympic Gold Prizm Black Category_Oakley Sutro Lite Sweep Attach the shoulder straps and Attach the shoulder straps and this Hydration pocket becomes a standalone hydration back pack ReflectiveStretch for added movement and supportThermalHeavier weight with a brushed inner surfaceBreathableWickingSecure pocketThigh stash pocketDrawcordAfterhoursThe Afterhours range is cantered on aiding visibility in low light conditions Available with Prizm™ lenses that are designed to enhance color and contrast so you can see more detailA high wrap protects from the elements and enhances vision with Prizm™ Lens Technology