The KLIM Oculus Goggle is designed with one purpose in mind: to give you the best possible vision on the snow. This was accomplished by addressing the three main pain points of all goggles: changing light conditions, fogging and field of vision. The Oculus system with KLIM Slide-Lock„ technology allows you to quickly and easily change lenses in the field to deal with changing light conditions - essentially its like having [up to] three goggles with you in a very compact package. The Oculus is engineered with the latest anti-fogging technologies such as unparalleled air circulation, massive internal air volume and the KLIM CLEAR„ anti-fog technology. The spherical, optically correct lens design provides unprecedented peripheral vision and clarity. QUICKLY/EASILY CHANGE LENSES IN THE FIELD WITH KLIM SLIDE-LOCK„ TECHNOLOGY 1 HIGH LIGHT DUAL-PANE LENS INCLUDED 1 LOW LIGHT DUAL-PANE LENS INCLUDED OPTICALLY CORRECT SPHERICAL HIGH VISIBILITY DESIGN DURABLE, SCRATCH RESISTANT POLY CARBONATE OUTER LENS CELLULOSE INNER LENS COMBATS FOG AND MOISTURE KLIM FOV+ GEOMETRY: PERIPHERAL VISION IS UNMATCHED KLIM CLEAR„ ANTI-FOG TECHNOLOGY RIGID, COMPACT, PACKABLE HEAT-FORMED LENS CASE FOR TWO SPARE LENSES CLEAR LENS UPGRADE RECOMMENDED [NOT INCLUDED] FOR VERY LOW LIGHT/DARK SITUATIONS ENTIRE VENTILATION SYSTEM DESIGNED TO MINIMIZE FOGGING ; MAXIMIZE VISION MAXIMUM INTERNAL AIR VOLUME KLIM A.F.I. [AIR FORCED INDUCTION] TECHNOLOGY MAXIMIZES AIRFLOW IN-FRAME DIRECTIONAL INTAKES MASSIVE LOWER AND UPPER FRAME VENTS 188% MORE FRAME VENT AREA THAN CURRENT COMPETITOR 123% MORE EYE CAVITY VOLUME THAN CURRENT COMPETITOR SNOW-DUST RESISTANT FRAME FOAM OUTRIGGERS PROVIDE PREMIUM FIT AND SEAL OVERSIZED 46MM NON-SLIP SILICONE STRAP OVER SIZED, BREATHABLE TRIPLE-LAYER FACE FOAM TRIPLE LAYER, HIGHLY VENTILATED FACE FOAM TO WICK MOISTURE AND MAXIMIZE COMFORT COMPATIBLE WITH ALL MOTOCROSS STYLE HELMETS FITS PERFECTLY IN KLIM HELMETS 2 LENSES INCLUDED (LOW AND HIGH LIGHT LENSES) PREMIUM GOGGLE ; LENS BAG / CLEANING CLOTH RIGID, COMPACT, PACKABLE HEAT-FORMED LENS CASE HOLDS TWO SPARE LENSES