UV400 means the lenses block 100% of UVA and UVB rays up to 400 nanometers — essentially all the harmful ultraviolet light present in sunlight. This is the protection standard to look for in any sunglasses, regardless of style or price, as it protects your eyes from long-term sun damage. All Iconic Sunglasses styles include UV400 protection as standard.

Polarized lenses have a special filter that reduces glare from flat, reflective surfaces like water, roads, and car bonnets, making them ideal for driving, water sports, or bright outdoor days. Non-polarized lenses still block UV rays and reduce overall brightness, but don't cut glare the same way. If you spend a lot of time driving or near water, polarized is worth the upgrade; for everyday fashion wear, non-polarized works just as well.

As a general rule, choose a frame shape that contrasts with your face shape — round faces suit angular frames like square or aviator styles, while square or angular faces suit softer, rounder shapes like round or cat eye frames. Oval faces are the most versatile and can wear almost any style. Heart-shaped faces tend to suit frames that are wider at the top, like aviators or cat eye styles, which balance a narrower chin.

Yes — aviators are one of the most consistently popular sunglasses styles, moving in and out of peak trend cycles but never fully disappearing since their introduction decades ago. They remain a safe, flattering choice for most face shapes and suit both casual and smart-casual outfits, which is why they stay a bestseller year-round rather than a passing trend.

For a round face, angular shapes like square, rectangular, or aviator frames add definition. For a square face, softer curved shapes like round or oval frames balance out strong jawlines. For an oval face, most shapes work well, though square or geometric frames tend to complement the natural balance of the face particularly well.

Check the frame width against your own face width at the temples — sunglasses that extend slightly beyond the edge of your face on each side without pressing at the temples are generally the right fit. As a rough guide, most adults fall into a standard or medium frame width, while oversized styles are cut wider and suit those wanting a bolder, fashion-forward look. If you're unsure, comparing the arm length and lens width listed on the product page against a pair of sunglasses you already own and like the fit of is the most reliable check.

Standard sunglasses are designed to be worn on their own rather than over prescription eyewear, as most frames won't comfortably fit over another pair of glasses. If you wear prescription glasses, look specifically for "fitover" sunglasses designed to sit over your existing frames, or consider prescription sunglasses as a more comfortable long-term option.