Bollé ROCKET Ski Mask for Children, UV Protection, Comfort & Clear Vision, Racing Blue, S

[Lens Technology & Category: SLF Cat. 2] Versatile glass for sunny and cloudy conditions Superior Light Filter (SLF) polycarbonate glass for sunny to cloudy conditions ensures 100% UV protection. [Lens features: anti-fog coating, anti-scratch coating, double lens] Clear vision thanks to scratch resistance and anti-fog. The double lens construction creates an insulating layer that reduces condensation and fog. Coatings ensure that fogging is reduced to a minimum and the windscreen surface remains in the best condition. Ventilation system: flow tech ventilation: ventilated frame to prevent fogging ventilation openings on the outside of the glasses frame allow air to enter and exit, which increases comfort and reduces the formation of fog. [Frame technology: not applicable] Surface: face foam with simple density: face foam for good grip of the frame on the face. A single layer of foam allows the glasses to be adjusted to your face