Ski goggles, and the two numbers that decide whether you can see

VLT is the only spec worth shopping on

VLT stands for visible light transmission, and it is the percentage of light the lens lets through. A 10% lens is a dark lens for a bright day. A 60% lens is a pale lens for a snowstorm or a night session. It is printed on the box and on the maker’s page, and it tells you more about whether a goggle will work on your trip than the price does.

The mistake almost every first buyer makes is buying the darkest, most mirrored lens on the shelf, then finding they cannot see the difference between a bump and a shadow on an overcast morning. Most family ski days in the US are not bright. A mid-range lens somewhere around 25% to 45% is the single most useful choice, and one of our picks publishes 36% for exactly that reason. The lens color and VLT guide maps every band to the conditions it is for.

Fog is a construction problem, not a cleaning problem

Goggles fog when warm damp air from your face meets a cold lens. Two things in the published specification address it: a double lens with an air gap between the two panes, which keeps the inner pane closer to your face temperature, and an anti-fog treatment bonded to that inner pane.

There is a third thing, and it is free: never wipe the inside of a goggle lens. The anti-fog treatment is a coating, and a glove wipes it off permanently. If the inside is wet, shake the water out and let it air dry. The anti-fog guide covers the rest, including the vent-blocking mistakes that cause most of it.

If you wear glasses

Over-the-glasses goggles, usually written OTG, are cut deeper at the temples so the arms of your glasses sit inside without being pressed into your head. Any goggle can be worn over glasses for ten minutes; an OTG goggle can be worn over them all day. Two of the picks in this section publish OTG frames, and one of them is a youth model at the same price as the non-OTG version, which makes the decision free for a child who wears glasses. The full guide to goggles over glasses covers the alternatives too.

Goggles and helmets have to be bought together

The gap between the top of the goggle frame and the brow of the helmet is called gaper gap, and it is not only a styling problem: it is a strip of bare forehead in the wind. Not every goggle fits every helmet, and the only reliable check is to hold them together. Our guide to fitting a helmet and goggles together explains how to check it before you take the tags off.

Children are a different problem

A child’s goggle needs to fit a small face, survive being dropped on a lift, and cost little enough that losing it is annoying rather than expensive. The specifications that matter shrink to two: 100% UV protection, and an anti-fog inner lens. Everything above about thirty dollars in the children’s market is buying optical quality, not safety. The children’s picks are here, and they start at a published $29.99.

What about just wearing sunglasses?

Sunglasses work for a warm spring afternoon on groomed runs at low speed and nothing else. They do not seal against wind, they let snow into your eyes, and they come off in a fall. The full answer, including when sunglasses are genuinely the better choice, is on goggles versus sunglasses.

How these are ranked

On published UV protection, whether an impact standard is published, whether an anti-fog treatment is published, how many lenses come in the box, and cost per day on snow. Nothing here is scored on optical quality, because we have not looked through any of them and any claim we made about it would be invented. The method is published in full.