The new Twenty Five sunglasses are the ideal partner for demanding activities, engineered to enhance performance and provide total protection.  The distortion free, impact resistant XTR Karbon8 optical class one blue mirror category 3 lenses provide maximum protection against UVA, UVB and other harmful blue light up to 400nm. The non-slip hypoallergenic temple tips are designed for comfort and fit. With enhancing screw-free sports clip hinge, no matter what activities you are doing your vision will not let you down. Tested to BS EN ISO 12312-1:201.