Oakley's Wind Jacket 2. 0 Prizm Sunglasses offer fast-paced clarity suitable for Nordic tracks and cycling tracks. Their Prizm lens provides unprecedented control of light transmission, resulting in colors precisely tuned to maximize contrast and overall visibility in specific environments. In the case for this pair, the Wind Jacket 2. 0 features a Prizm lens that excels in snowy settings like cross country tracks or recently paved roads. You can replaces the lens with a Prizm lens fine-tuned for seasons other than winter, too. Proposition 65 Warning for California Consumers: This product contains chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm.