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Bolle lens guide

What is VLT?

VLT (visible light transmission) expresses the amount of sunlight a lens allows to pass through, expressed as percentage.

On bright sunny days, you need lenses with low VLT to protect you from being blinded and reduce eye fatigue. Lenses with low VLT usually have darker tint to keep more light out and are often equipped with mirrored coating which makes it easier to see the contours and the bumps on the slope when travelling at speed.

On snowy and foggy days, when the light conditions are low, lenses which allow higher VLT perform better.


What are S3/S2/S1 lens categories?


S3 - Bright / sunny weather
Next to blocking 100% of the harmful UV rays, high tint offers maximum glare protection. Allows you to see comfortably when the weather is very good.


S2 - Variable / unsettled weather
Most commonly purchased type of lens, capable of dealing with varying light conditions. Provides perfect vision in both sunny and cloudy weather, perform beautifully when afternoon shadows start to creep onto the slope.


S1 - Cloudy weather / overcast
Provides crystal clear view when the visibility on the slope is poor. You want to be equipped with lenses with high VLT % when when snow falls heavily or when you find yourself riding past the sunset.

MODULATOR LENS CONDITIONS VLT
Modulator Light Control Modulator Light Control All
17-46%
S1-S3
Modulator Citrus Gun Modulator Citrus Gun All
17-48%
S1-S3
Modulator Vermillon Blue Modulator Vermillon Blue All
18-59%
S1-S3
Modulator Green Emerald Modulator Green Emerald All
11-55%
S1-S3
Modulator Vermillon Blue Modulator Vermillon Blue All
35-64%
S1-S3
LENS CONDITIONS VLT
Citrus Gold Citrus Gold Bright
16%
S3
Dark Citrus Dark Citrus Bright
16%
S3
Polarized Vermillon Polarized Vermillon Medium / bright
18%
S2
Vermillon Gun Vermillon Gun Medium / bright
22%
S2
Citrus Citrus Medium / bright
33%
S2
Fire Orange Fire Orange Medium / bright
35%
S2
Vermillon Vermillon Medium / bright
37%
S2
Aurora Aurora Low
45%
S1
Fire orange Fire orange Low
50%
S1
Lemon Gun Lemon Gun Low
50%
S1
Lemon Lemon Low
76%
S1
Clear Clear Low
82%
S1