Frequently Asked Questions
Which lens category is best for mountain hiking?
Category 3 is suited to hiking in bright conditions. In high mountains and on glaciers, move up to category 4, which filters out most of the light for highly glaring environments. Note that category 4 lenses must not be used for driving.
Why does mountain hiking require special glasses?
Because the light up there is far more intense: altitude filters out less UV and snow reflects the sun's rays strongly. Without proper protection, you risk glare, eye strain and snow blindness: a genuine safety issue.
Do you need side protection?
In high mountains and on glaciers, yes: side shields block the reflected light that creeps in from the sides. For classic hiking, a wraparound frame is usually enough to protect you from side glare and wind.
How to choose glasses that don't slip
Look for non-slip arms and an adjustable nose bridge, ideally in a soft material, that keep your glasses in place despite sweat and movement. A lightweight wraparound frame stays stable on climbs and descents, without any pressure points.
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