Sunglasses at concerts and festivals: what to bring and what you will lose

Bring the pair you can afford to lose. That is the whole piece in one line, and it is the advice people ignore and then regret at two in the morning in a field.

Festivals combine every hazard eyewear faces: hours of open sun, airborne dust, crowds that knock things off faces, nowhere clean or safe to put anything down, and a gradual decline in how carefully anyone is handling their possessions. Expensive sunglasses do not do well there.

That said, you do need eye protection — an open field for eight hours is a genuinely high UV exposure — so the question is what to bring rather than whether.

What to bring

A mid-price pair with a real UV specification. Not your best, and not a market-stall pair with no filter. The thing that matters is the UV400 claim being real, because a dark lens with no filter dilates your pupil and admits ultraviolet — the mechanism is in UV protection vs dark lenses, and how to spot fake sunglasses covers checking.

A retainer or neck cord. The most useful thing on this list. In a crowd, sunglasses pushed up on your head get knocked off, and a pair on the ground in a crowd is a pair underfoot. A cord means they hang on your chest instead. Sunglasses straps and retainers covers types that are not annoying to wear.

A soft pouch, at minimum. A hard case is better and most people will not carry one. A pouch in a bag is enough to stop keys scratching them.

A brimmed hat. Does more for all-day comfort in an open field than a darker lens, because it handles the overhead sun that makes you squint. Sunglasses and hats covers wearing both — glasses on first, hat over the arms.

A microfibre cloth. Small, weighs nothing, and the alternative is wiping dust across a lens with a t-shirt.

A spare cheap pair if you are camping for several days. Realistic rather than pessimistic.

What to leave at home

Anything expensive or sentimental. The loss rate is high and the care level in a field at night is low.

Rimless frames. The lens is drilled and bolted, and a knock in a crowd that a full-rim frame shrugs off can crack a rimless one.

Your prescription sunglasses, if you have a spare option. If they are your only way of seeing clearly outdoors, bring them and bring the retainer — but know the risk. Contacts plus a cheap pair is the lower-risk arrangement, and the comparison is in are prescription sunglasses worth it.

A single pair you are relying on. If they break, you have a long bright day with no eye protection.

Dust is what ruins the lenses

The specific mechanism, because it is avoidable.

Festival dust is mineral — dried soil, ground to powder by a few thousand people. It is harder than a lens coating. Wiping a dusty lens with a cloth or a shirt drags those particles across the surface and leaves fine scratches, and the damage is permanent.

What to do instead:

Blow the dust off first, or rinse with water if you have any.

Then wipe with a microfibre cloth, gently.

Never a dry t-shirt on a dusty lens. This is how most festival sunglasses come home scratched.

At the end of each day, rinse the frame in water if you can — including the hinges, where dust and salt collect and cause the squeak covered in squeaking sunglasses hinges.

Tint and lighting

Daytime, open field: a mid to dark tint, grey or brown. Grey keeps colours accurate, which matters if the visual production is part of why you are there. Brown lifts contrast. Either is fine; the lens colour guide covers the difference.

Polarized: worth having for an open field, and there is one niche caveat. Polarized lenses interact with some LED screens and some polarised stage lighting in ways that produce odd dark bands or rainbow patterns. Not common, occasionally distracting. The general exclusions are in who should not wear polarized sunglasses.

Evening and night sets: take them off. This is worth being direct about. A tinted lens in dim light reduces what you can see, and a crowded field at night with cables, guy ropes, tent pegs and uneven ground is a place where seeing matters. The same argument applies to tinted lenses for night driving, covered in headlight glare at night — reducing the light reaching your eyes when there is already too little is not a solution to glare.

If you want eye protection at night for stage strobes, that is a real consideration for photosensitive people, and clear lenses or simply looking away are the answers rather than dark lenses.

The low-sun hour

The hardest light at a festival is not midday. It is the hour before sunset, when the sun is low and directly across the field, usually straight at the stage.

Nothing fully fixes this — a lens cannot block light coming from the direction you are looking without blocking the thing you are looking at. What helps:

A brim, angled down, which is more effective than any lens at a low sun angle.

Standing where something blocks it, which is often a few metres' adjustment.

Mid rather than maximum tint, so that when you look away from the sun into the crowd you can still see.

The same problem in a car is covered in driving at dusk, and the solutions are similar: block it from above rather than darkening everything.

Keeping track of them

Practical measures that work.

The retainer, worn, not in a pocket.

Not on your head. The single most common way they are lost, and also how arms get splayed — see how to fix loose sunglasses.

Not hooked in a collar or a waistband, which is how they end up on the ground.

A named pair, if you care about getting them back. Festival lost property receives a lot of anonymous sunglasses and returns very few.

In the tent: in a case, in a bag. Not loose in a sleeping bag or on the groundsheet, and not left in a closed tent in the sun — a tent in full sun reaches the kind of temperature that warps frames, which is the same failure as a hot car.

Camping and the tent problem

A few days on site introduces hazards that a day ticket does not.

A tent in full sun is an oven. Internal temperatures on a hot afternoon easily exceed what warps an acetate frame or delaminates a polarized lens, and a tent is the one place people assume is safe because it is shaded fabric. It is not — the same failure as a hot car.

Keep them in a case, in a bag, in the shade — or better, on you.

Not in a sleeping bag or on the groundsheet, where they get knelt on in the dark.

Sand and dust get into everything over three days, including the case. Shake the case out before putting them back in, or you are storing them against grit.

What to do about contact lenses

Worth a word, because festivals are hard on them.

Dust, dry air, long days and limited handwashing facilities make contact lenses more trouble than usual, and rubbing an irritated eye with dusty hands is how a minor problem becomes a corneal one.

Bring daily disposables if you wear lenses, so a gritty one goes in the bin rather than back in your eye. Bring glasses as a fallback. And bring enough saline that you can rinse your eyes rather than rubbing them.

Frequently asked questions

The short version

Bring a pair you can afford to lose, with a real UV specification, plus a retainer, a pouch, a cloth and a hat.

Never dry-wipe a dusty lens. Blow or rinse first; that one habit is the difference between coming home with scratched lenses and not.

Take them off after dark. And leave the rimless frames and the expensive pair at home.