Ray-Ban - RB4336CH proves that practicality and style go hand in hand. Sporty and understated, the phantos shape of this frame perfectly matches a sense of style and an active lifestyle. Available in many colour combinations, from classic or transparent frames to brown or purple polar lenses. Polarized Chromance lenses reduce eyestrain.Category 2. General purpose sunglasses. Good protection against sunglare, good UV protection, not suitable for driving at twilight, at night or under dull light conditions.