Shred across the high slopes with the comfort and protection of Bolle® Women’s Sierra Snow Goggles. In addition to the their double lens dual-pane thermal barrier, these lens also feature a Carbo Glas® shield to reduce scratching as well as an P-80+ Anti-Fog layer to prevent moisture build up. Meanwhile, Flow-Tech® venting promotes airflow across the inside lens to reduce moisture, while double density foam offers a comfortable wear. DESIGN & TECHNOLOGY: Perfect for skiing, snowboarding and other snow sports activities Carbo Glas® Anti-Scratch for a protective shield that prevents scratches Double lens dual-pane thermal barrier prevents condensation from forming P-80+ Anti-Fog layer restricts moisture build up Lens block harmful UVA/UVB rays up to 400 nanometers Flow-Tech® Venting promotes directional airflow across the inside surface of the lens to reduce moisture built up Double layer foam with a soft micro-fleece face layer Goggle/helmet integration for a comfortable fit Use spec chart to determine VLT (Visible Light Transmission) Range and Recommended Conditions for main lens color