2X lens included. Interchangeable Lens. UV Protection. Anti-Slip Nose Piece - Ensures maximum comfort and eliminate slippage. Adjustable Nose Pads - They help to keep the frames secure on your face and prevent them from sliding down your nose. Ventilated Nose Bridge - Improves comfort and reduces fogging. Anti-Slip Temples - Incorporates non slip components, helping to keep the frame securely on your face. Adjustable Temple Tips - The temple tip can be adjustable in any direction and incorporate non slip components. This technology improves comfort, provides a perfect fit during any use and eliminates pinching. Wrapped frame & temples – Extensive curvature provides for the widest field of vision as well as optimum protection for the eye area. Provides better ergonomic profile for firm fitting on face or head. Lens Curvature – 8 base. Offers better periphery vision. Flash Mirror Coating - A flash or mirror coating is good for situations that require a reduction in the overall brilliance of light, such as sunlight on snow, roads or water. The Nike Max Transitions® Outdoor Tint is designed to amplify the visual spectrum found in natural environments. Whether adapting to harsh sun or brightening dark shadows, this lens enhances the view of everything around you, no matter the light condition. The Nike Max Transitions Outdoor Tint shifts from a 45% visual light transmission to a 15% VLT based on available light.