Sunglasses are one of those accessories that manage to be both entirely practical and deeply expressive at the same time. The right pair protects your eyes from UV radiation, reduces glare, and prevents the long-term damage that years of unprotected sun exposure can cause. But they also say something about who you are — which is why choosing the right pair deserves more thought than most people give it.
The market for sunglasses ranges from single-use festival pairs to handcrafted Italian luxury frames that cost more than most people’s monthly rent. Between those extremes sits a wide range of genuinely good options, and understanding what actually matters — versus what is marketing — makes the difference between a purchase you wear for years and one that ends up in a drawer.
Why UV protection matters more than lens colour
The most common misconception about sunglasses is that darker lenses mean better protection. In reality, the colour and tint of a lens has no relationship to its UV-blocking capability. That comes entirely from a chemical coating applied to the lens surface. A pale rose-tinted lens with a UV400 rating blocks more harmful radiation than a very dark lens with no UV treatment at all.
UV400 is the standard to look for. It means the lens blocks all ultraviolet light with wavelengths up to 400 nanometres, covering the full UVA and UVB spectrum. Prolonged UV exposure without adequate protection increases the risk of cataracts, macular degeneration, and photokeratitis — essentially sunburn on the surface of the eye. These conditions develop gradually over years, which is precisely why consistent protection from an early age matters so much.
Polarised lenses go one step further by eliminating horizontal light waves, the reflected glare that bounces off water, roads, and flat surfaces. If you drive regularly, spend time near water, or ski, polarised lenses make a meaningful practical difference to visual comfort and safety. All of our Ray-Ban and Oakley sunglass frames include polarised UV400 lenses as standard.
- UV400 rating blocks 100% of UVA and UVB radiation
- Polarised lenses reduce surface glare from water, roads, and snow
- Lens colour and tint have no effect on UV protection levels
- Anti-reflective coatings on the inner surface reduce eye strain indoors
Matching frames to your face shape and lifestyle
Frame shape is the most personal aspect of choosing sunglasses. The general rule is that frames should contrast with your face shape rather than mirror it. Round frames soften angular faces, angular frames add definition to rounder profiles, and oversized frames balance oblong faces by adding perceived width. Oval faces are the fortunate exception — virtually any frame shape works well.
Person wearing Ray-Ban Aviator Classic sunglasses on a sunny coastal terrace
Beyond shape, frame material plays a significant role in comfort and durability. Acetate is lightweight and hypoallergenic, metal is slim and minimalist, and nylon or TR90 is the choice for sport and activity. The best frame is the one that suits your face, fits your lifestyle, and that you reach for instinctively every time you leave the house. Because the protection only works when the sunglasses are actually on your face.