CLARITY IN EVERY DIRECTION: The Hyperforce Elite Training Sunglasses are built with advanced optics in a one-piece lens that provides an uninterrupted line of sight no matter how and where you move. Along with an incredibly lightweight frame, they offer adaptable comfort on game day or during training. Nike Elite one-piece lens for superior coverage and clarity. MAX Optics provide precise vision from all angles. Ventilated, self –adjusting nose bridge provides an individualized fit. Anti-fog ventilation holes in the frame circulate air. Flexible temple arms for optimal fit, enhanced grip and stability. Frame accommodates interchangeable lenses for any light condition.