Oakley - Shackle - Matte Black/Prizm Sapphire 20mm QuickFit it can easily be adjusted

it can easily be adjusted to comfortably fit a wide range of body types

Seals porous tyres and bead/rim gaps

If you happen to run out of power just before a workout

- Adjustable snap strap for a secure

Oakley - Shackle - Matte Black/Prizm Sapphire 20mm QuickFit it can easily be adjustedExplore anywhere with Shackle, a frame built for comfortable, everyday use. The full rim, soft square frame shape boosts Shackles style factor while the lightweight O Matter front ensures durability to support an on the go lifestyle. The Unobtainium nosepads and slip on earsocks help keep the frame securely in place with a secure fit for those all day adventures. Order Shackle with Oakley Authentic Prescription Lenses for consistent high quality in