VLT (visible light transmission) is the share of light a lens lets through. Low VLT lenses (filter categories S3 and S4) suit bright sun; high VLT lenses (S1 and S0) suit flat light, storms and night skiing; S2 is an all-round middle. Many skiers carry two lenses or choose goggles with quick-change lenses. Check that the frame fits your face and your helmet.
The right lens helps you read the snow.
Filter categories
| Category | VLT | Conditions |
|---|---|---|
| S0 | 80 to 100% | Night, very low light |
| S1 | 43 to 80% | Flat light, snow |
| S2 | 18 to 43% | Mixed, all-round |
| S3 | 8 to 18% | Bright sun |
| S4 | 3 to 8% | Very bright, glacier |
Fit
The goggle should seal around your face without pressure points and sit flush with your helmet.
Related: ski helmet guide and ski goggles over glasses.
Common questions
What VLT is best for skiing?
Low VLT for sunny days, high VLT for flat light and snow. A mid VLT lens is the best single choice.
What lens is best for flat light?
A high VLT lens, often in yellow, rose or similar tints that boost contrast.
Are mirrored lenses better?
Mirror coatings reflect light and lower VLT, which helps on bright days.