SOS: Survival Optics Sunglasses, the Sport Sunglass division of Hi-Def Optics, was formed in the year 2000 in response to consumer demand for Technologically Advanced Performance Eyewear at affordable prices. Based in Carpinteria, on the California coast just south of Santa Barbara, the Hi-Def Optics management team has over 75 years of combined Sunglass design, innovation and manufacturing experience. You can be confident in receiving the best value for the finest product currently available in the marketplace. Whether you are into Running, Skateboarding, Water Sports, Snowboarding, Biking or just an active sports fan we have a Sunglass specifically designed for you. With attractive, face hugging, ergonomically designed frames and distortion free Optical lenses providing Full Spectrum UV protection, you are assured of both comfort and superior quality eye protection regardless of the style you choose. SOS offers a Lifetime Replacement Guarantee to show you they are willing to "Put Their Money Where Your Eyes Are." Hi-Def Optics... where Hi-Tech doesn't equate to High Prices!