Bliz offers a wide range of high quality extra lenses for our ski goggles. Bliz goggles are designed to make it easy to change lenses for different weather and light conditions. All to maximize flexibility for you when you practice your sport.Features:- Dark conditions such as sunset, night, indoor, snowy or cloudy. LT 80-100%- Flat light conditions, increase contrast and brighten up the landscape. LT 43-80%- Increase contrast great for bright days, allround. LT 18-43%- For bright conditions. LT 8-18%- Exceptionally strong sunlight. LT 3-8%