The Predator Flex Polarized google in a smaller frame size to fit narrower to average width faces. Polarized lenses enhance color and visual definition while also reducing glare from horizontal light rays, making these ideal for outdoor swimming. In addition to the polarization, 100% of UVA and UVB rays are blocked, further eliminating eye strain, fatigue and damage. Flexible frame technology allows the frame to flex around the face nose area, providing a comfortable fit and leak free performance. Quick adjust strap mechanism ensures a perfect fit. Curved lens technology provides a distortion free 180 degree field of vision. Polarized Itallian lenses protect eyes and eliminate glare in open water swimming. 4 Flexpoint Technology allows the frame to flex in key area around the face and across the nose bridge to provide an unmatched fit and comfortable feel. Curved lens technology provides an expanded 180 degree field of vision with no distortion. Quick adjust: Pull two straps to tighten and lift lever to loosen or adjust. Lenses are coated with Fogbuster anti fog for clear, unobstruction vision.