Engagement: Hex drive 102T/3

Its position on the upper back allows maximum freedom of movement and easy access to the jersey pockets

ABS Hard Plastic Shell with EPS Liner

Includes 2 x Springs to go behind the ratchets and the special DT Swiss grease

With generous specs like that

Oakley Meta HSTN Vanguard Glasses - 52mm - Meta Hstn Vanguard Glasses 52mm Black Replace Images Engagement: Hex drive 102T/3Oakley have reimagined one of their most iconic silhouettes, HSTN, infusing it with cutting edge tech while preserving its bold design language. Now equipped with discreet speakers and a camera, the frame delivers an elevated experience without sacrificing style. Oakley Meta HSTN lets you listen to music while staying present in your environment, capture high resolution photos and videos hands free, and share your perspective with effortless ease.