Northwave Razer Photochromic Sunglasses - 2011

Photochromic Lens
Photochromic lenses change colour intensity depending on exposure to the light, and as a result alter the sun protection of the lens. 100% protection from UVA and UVB rays.

Polycarbonate Lens Material
Polycarbonate offers first-rate optical characteristics, excellent impact resistance and extraordinary lightness. It has a low refraction index and filters out ultraviolet light. All Northwave polycarbonate lenses are subjected to surface hardening treatments that make them resistant to abrasion and solvents.

Off Centre Lens Curvature
The accentuated curvature of standard lenses provides impact protection but may distort the field of vision. Northwave sunglass lenses have an off-centre base: the axis of the focal centre is perfectly aligned with the focal centre of the eye. This ensures that your field of vision remains perfectly natural and balanced, preventing image distortion and eye fatigue.

Water Repellent Lens Treatment
Northwave lenses undergo a treatment that leaves them exceptionally smooth, this allows drops of water to so simply slide down the lens rather than attaching to microscopic ridges found on regular lenses. Essential for clear vision in wet conditions.