Spend hours outside with optimum eye protection offered by SPY Optics Frazier Nonpolarized Sunglasses. Built from virtually indestructible Grilamid with pin hinges to withstand years of use. 8x4-base polycarbonate Toric lenses. Lenses incorporate Happy Lens technology, which only let in long-wave blue light the good rays. Studies suggest that long-wave blue light offers an uplift in mood and alertness. 100% UV protection. Features Hytrel rubber nose pads and temple tips to ensure a secure fit.