High performance sunglasses for high altitude trekking and mountain use. Category-4 lenses offer the highest level of protection for exceptionally bright sun+snow conditions, when normal sunglasses are just not dark enough to prevent eye strain and don't protect against peripheral light.

Spectron 4 polycarbonate lenses offer impact protection and a very high level of visible light protection.
100% protection from damaging UV.
Durable polymer frames.
Removable side shields protect from peripheral light entry.

Suppled with detachable leash and soft bag.

Visible light protection category: 4

Frame size: Medium

NB: Category 4 lenses are NOT suitable for driving.