Oakley Hydra Black Ink Prizm 24K Batteries & Chargers Battery life: at least 50

Battery life: at least 50 hours

tooth profile and shift ramp design for quick and positive index shifting

Moulded pins and ribs for grip

square lens shape infused with design inspiration taken from the craftsmanship and finishes of surfboards and the lifestyle around surfing

less weight and increased rotational efficiency results in a faster DEORE XT ride

Oakley Hydra Black Ink Prizm 24K Batteries & Chargers Battery life: at least 50Oakley Hydra is a Semi Rimless frame which is made of O Matter Oakley's O Matter is a light weight, durable material designed with a degree of flexibility to absorb impact. This model features a Wrap Around shape, with a Single Bridge.