Frameless sunglasses feel different the moment you put them on. There's no rim cutting into your peripheral vision, no frame pressing against your brow when you're in the drops, just an uninterrupted view of the road ahead. The Shimano S-Phyre SL Sunglasses take that rimless concept and strip away everything possible, landing at roughly 23 grams—light enough that you genuinely forget you're wearing them after the first few kilometers. That disappearing act is exactly what race-focused eyewear should do.

Shimano builds these around their RIDESCAPE AR lens, which stands for All Road. The 14% visible light transmission works across a wider range of conditions than dedicated sunny-day lenses, handling everything from bright tarmac to overcast gravel without feeling too dark or too washed out. The blue multi-layer mirror coating reduces glare while boosting contrast, which makes spotting surface changes—cracks, gravel patches, wet spots—easier at speed. If you ride mixed terrain or just don't want to swap lenses constantly, the AR tint covers a lot of ground.

The lens material itself is polyamide rather than the more common polycarbonate, which accounts for about 12% of the weight savings. Beyond weight, polyamide has optical advantages: a lower refractive index means less light distortion, and a higher Abbe value reduces chromatic aberration—those colored fringes around objects that make cheaper lenses feel slightly off. The result is clarity that approaches optical glass without the weight or fragility.... Read More