Transitions VII
- incorporated new Chromeo 7 technology
- dye formulation that absorbs more light and is more responsive lens in various outdoor lighting conditions
- becomes fully clear indoor unlike any other transition lens
- on average 15% darker in the gray tint from the previous Transition VI lenses
- on average 20% darker in the brown tint from the previous Transtion VI lens
- more stable in all weather conditions
- gets darker when the temperature rises.
learn more about transition lenses
http://www.transitions.com/en-us/why-transitions/are-transitions-right-for-me/