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

Battery life: at least 50 hours

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

The SRAM DUB™ (Durable Unified Bottom Bracket) bottom bracket series has a simple job — connect your crankarms and protect the smooth

thanks to smart foot pedal tilt

ensure maximum comfort

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.