Sunglasses are the most worn accessory in a man's wardrobe and, almost without exception, the least considered. They are bought in airports, replaced after losses, chosen in the ninety seconds before a flight boards. And yet no other object sits so permanently at the centre of the face, shaping the impression a man makes before he has said a word.
The correct approach is the opposite of impulse. A well chosen pair should last a decade, survive several shifts in taste, and look as considered in year eight as in week one. What follows is how to arrive there.
Begin with geometry, not trend
The oldest rule in eyewear remains the most useful: frames should contrast with the structure of the face rather than echo it.
A square or angular face is served by softer geometry — the rounded panto, the gentle curve of an aviator. A rounder face finds definition in rectangular and squared frames, which introduce the lines the face does not supply itself. An oval face, the most accommodating, can carry nearly any shape, and should therefore be chosen on material and colour instead.
The second measure is width. The frame should finish at the outer edge of the face, no wider. A frame that extends past the temples reads as borrowed; one that stops short makes the face appear broader than it is.
The four shapes worth knowing
The aviator. Designed for pilots in the 1930s and never meaningfully improved upon. Its teardrop lens flatters angular faces and its thin metal construction keeps weight negligible. The most forgiving shape in eyewear, and the safest first serious purchase.
The squared frame. The architectural choice. Heavier acetate, defined corners, a deliberate presence. It suits softer features and reads as considered rather than casual — the frame to wear with tailoring.
The panto and the round. Intellectual, a little unexpected, entirely dependent on proportion. Worn well, it is the most distinctive shape a man can choose. Worn badly, it overwhelms. Keep the diameter modest.
The rectangle. The quiet option, and the one that disappears most gracefully into daily use. Narrow lenses, minimal styling, nothing to date. If a single pair must serve everything, it is usually this.
Acetate or metal
Cellulose acetate — the material behind almost every substantial frame — is cut from solid block rather than moulded. It holds colour with depth, warms to the skin, and can be adjusted by hand. It carries visual weight, which is precisely the point when a frame is meant to be seen.
Metal does the opposite. Titanium, stainless steel and thin acetate-tipped constructions all but vanish on the face. They are lighter, cooler in heat, and better suited to men who want protection without announcement.
Neither is superior. The choice is between a frame that participates and a frame that recedes.
The lens is not a detail
Tint governs how the world appears; it has little to do with protection. Grey lenses render colour most faithfully and are the correct default. Brown and amber lift contrast, which is why they are favoured for driving and long light. Green sits between the two.
Polarisation is a separate matter. By cutting horizontal glare from water, glass and road surfaces, it transforms the experience of coastline and open road. In a country of long summers and longer coastlines, it earns its place.
What matters more than any of this is UV protection, and here the rule is absolute: a dark lens without proper filtration is worse than no lens at all, because the widened pupil admits more ultraviolet light, not less. Every pair worth owning states its protection clearly.
Fit, which decides everything
A frame that fits correctly touches the face at three points — the bridge and the two temples — and nowhere else. The lenses should not brush the cheekbones when smiling. The arms should hold without pressure behind the ears.
Weight distribution matters more than total weight. A heavier frame that sits properly is more comfortable across a day than a light one balanced entirely on the nose.
Care, briefly
Two hands when removing them; one hand bends the frame out of alignment over time. A microfibre cloth, never a shirt tail, which grinds dust across the coating. Never rested lens-down. Never left in a car in summer, where heat softens acetate and separates lens coatings.
Observed properly, these habits extend the life of a good frame by years.
The considered position
A man does not need a collection. He needs one pair that fits his face, suits the way he actually lives, and can be worn for a decade without apology — and perhaps a second, in a different register, for the days that ask for something else.
Chosen that way, sunglasses stop being a purchase repeated every summer and become what they should have been from the beginning: a fixed point in a considered wardrobe.