Brown Polarized Category 3Lens: Polarized category 3Tint: AmberConditions: Cloudy to SunnySport: Multi-Sport lens, ideal for water sports Blue Photochromic Category 0-2Lens: Transition / photochromic, transitions from category 0-2 light clear blue (In the winter ALL transitions lens go darker due to the cold) this lens become category 1-3 in the winter)Tint: Yellow (Amazing Contrast)Conditions: Night to SunnySport: Multi-Sport lens, ideal for skiing, cycling, mountain biking, triathlon, running, trail running HD Blue Category 2 LensLens: Blue category 2Tint: Bright Amber (Amazing Contrast)Conditions: Cloudy to SunnySport: Multi-Sport lens, ideal for cycling, mountain biking, triathlon, trail running, skiing. Blue Photochromic Category 1-3 LensLens: Transition / photochromic, transitions from category 1-3, light clear blue to dark blue.Tint: Yellow (Amazing Contrast)Conditions: Cloudy to SunnySport: Multi-Sport lens, ideal for cycling, mountain biking, triathlon, running, skiing.