How to choose your downhill ski?
- 19 November 2020
The role of the ski mask is to protect from the sun, UV rays and light in the mountains. All the more so as the sun’s rays are more aggressive in the mountains where the intensity increases. Moreover, snow reflects 85% of the light rays, even when the sky is overcast: everything is white. It is therefore important to choose your ski goggle carefully.
We feel this overexposure to UV rays: eyes that weep, sting… even snow ophthalmology. Wearing a ski goggle is important, all our ski goggles are certified by the EN174 standard, they guarantee protection against 100% of UV rays.
The ski goggle provides protection in addition to sunglasses:
Most importantly, the ski goggle protects against the cold and wind: When skiing, you go fast, negative temperatures and wind are very unpleasant for your eyes. Only the goggle will ensure watertightness thanks to its foams which adapt to the shape of your face.
Moreover, it protects your eyes from any intrusion, dust, leaves, branches, ski sticks…
So no more hesitation, when we ski, we protect ourselves: we wear a ski mask.
The transmission rate of visible light varies according to the category of screen chosen: the higher the sun protection, the higher the index. The categories range from 0 to 4:
These screens allow more than 80% of visible light to pass through, the glass is not tinted. It is reserved for night-time outings.
These screens let 80 to 43% of visible light through, the tint is very light, it is the ideal screen for white days, fog, snow.
These screens let through 43 to 18% of visible light, they are often fairly versatile screens that are suitable for overcast, cloudy weather.
These screens let through from 18 to 8% of visible light, those are the most frequent with an effective dark tint on sunny days.
These screens let through less than 8% of visible light, they are quite rare and are reserved for skiing at very high altitudes, on glaciers during extreme sunshine.
There are photochromic screens: they react to UV rays and adapt automatically to the ambient light. So they darken with the sun and lighten with the clouds, thus covering 2 to 3 categories.
Often we are dazzled by what is called polarised light. This is indirect light that comes from the reflection of sunlight on a shiny surface.
Polarised lenses combat this reflection of the sun by blocking the dazzling rays but allowing the light to pass through. Somewhat like a Venetian blind. They also improve contrasts and colours. Reserved for sunny days, a ski mask with a polarised screen will give you better visual acuity. However, the polarisation may prevent you from anticipating a patch of ice as the reflections will be attenuated.
When buying the mask, remember to take your helmet. Masks and helmets come in different shapes, you will wear them all day long so it is important to feel comfortable. The day can be ruined by :
Try several models: the one you liked is not necessarily adapted to the shape of your face, to your helmet.