How lenses impact athletes competing in aerial skiing and snowboarding

Observing the hazy conditions at the aerials on Tuesday, Lassila said she would go for a brighter lens because it makes it easier to see.

“Aerial skiers wear cycling glasses, and they do that with different lenses that you can adjust. So, like today it’s flat light, so you’d put a lens in that’s quite bright – a yellow lens – and that would just make everything a bit brighter,” she said.

The same goes for moguls skiers, although they wear goggles. On overcast days moguls skiers often wear a pink lens to brighten the snow and bring out the definition of the moguls.

But each athlete is different.

“If you wear yellow lenses on a really sunny day, it’s too bright, so you need something in between, like an orange or a soft brown lens,” Lassila said.

“And then on really sunny days, and if the sun is really direct, then you’d use a reflective lens.”

Clear lenses are used for nighttime, said Lassila, although she preferred to use yellow.

On sunny days with a lot of glare, you’ll often see athletes opt for a darker lens, like blue or grey, to reduce the overall light.

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Events were eventually called off on Tuesday not just because of the low visibility, but more because the conditions made it difficult for emergency authorities to access the site if they were needed.

Even on those days, when visibility is low due to the relentless snow, Lassilla said athletes can usually see where they’re landing because of lens choice, and because maintenance workers throw pine needles on the landing to differentiate the snow and the sky for athletes when they’re jumping in the day.

The 2026 aerial events are being held in the day, but Lassila said athletes preferred to compete at night because the definition between the sky and the snow was obvious.

“It’s the best conditions to jump. You’ve got the night sky, and you’ve got the white snow, and you’ve got that really good distinction,” she said.

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“You can see all the lines and features of the snow. Under the lights is everyone’s favourite.”

Even when the conditions are bad, aerials athletes don’t get disoriented in the air as much as you’d think, said Lassila.

“You always need to look at the landing point – where you’re going to land – in between each flip,” she said.

“The minute you take your eyes to the sky, you’re lost. So that’s where you get people in trouble.”

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