Oakley Flak 2.0 XL Glasses
Pickup available at RA Cycles - Brooklyn
Usually ready in 24 hours
Questions about this product?
Questions about this product?
Oakley Flak 2.0 XL Glasses Info
The Oakley Flak 2.0 XL Glasses sit at the crossroads of sport performance and everyday wearability — a frame built on Oakley's most refined optical engineering, in a size that delivers serious coverage without the bulk. The XL designation means extended lens dimensions for a wider, deeper field of view that works as well on the bike as it does on the run or trail. In Matte Black with PRIZM Black, this is a frame for high-output riding in direct, intense sun.
The optical system starts with Oakley's patented HDO® — High Definition Optics. Unlike standard lens manufacturing that accepts minor distortion as a cost of production, HDO holds optical correctness across the full curve of the lens, at every viewing angle. What you see through the Flak 2.0 XL at the far edge of the lens is as sharp as what you see through the center. The Plutonite® lens material handles protection: it's impact-resistant and provides 100% UV filtering across UVA, UVB, UVC, and harmful blue light up to 400nm — meaningful in extended outdoor exposure where cumulative UV does real damage.
PRIZM Black is Oakley's lens tuning for bright, high-intensity conditions. At 11% light transmission, it cuts harsh glare while enhancing color and detail so the environment reads as vibrant and natural rather than bleached. It's not a specialized cycling tint — it's a clean, neutral darkening that works across any outdoor environment in full sun. The O Matter™ frame is Oakley's injection-molded thermoplastic: stress-resistant, more durable than acetate under sustained use, and light enough that extended wear doesn't add fatigue. Unobtainium® earsocks and nose pads grip more firmly as they get wet, keeping the frame positioned correctly through effort. Lenses are interchangeable, letting you adapt the frame to different light conditions over its life.
Specs at a Glance
- Frame material: O Matter™ — injection-molded thermoplastic, stress-resistant
- Lens material: Plutonite® — impact resistant, 100% UV protection (UVA, UVB, UVC, blue light to 400nm)
- Lens optics: HDO® (High Definition Optics) — patented distortion-free clarity at every angle
- Lens technology: PRIZM Black — 11% light transmission, neutral enhancement for bright conditions
- Frame type: Semi-rimless rectangular, XL extended coverage
- Grip: Unobtainium® earsocks and nose pads
- Lens compatibility: Interchangeable
Design Benefits
- HDO® precision optics — Oakley's patented manufacturing standard maintains distortion-free vision across the full lens surface, not just the optical center — a meaningful difference in a curved semi-rimless frame.
- PRIZM Black in bright conditions — 11% VLT cuts harsh sunlight while preserving color richness and detail, making it a clean choice for direct midday sun across road, trail, and track.
- XL coverage — The extended lens dimensions provide more eye and orbital protection than the standard Flak 2.0, with a larger visual field suited to bigger face shapes.
- Unobtainium® retention — Moisture-activated grip material on earsocks and nose pads locks the frame in position as you heat up, preventing slippage mid-effort.
- Interchangeable lens system — The frame accepts multiple PRIZM, polarized, and iridium lenses, making it adaptable across seasons and light conditions.


