S4 goggles and sunglasses are for snowboarders and skateboard. With over 20 years experience perfecting their sunglasses, S4 sunglasses come recommended by anyone and everyone who has ever tried on a pair. Designed by professionals in the best factories, S4 sunglasses are the perfect combination of quality and style. S4 is willing to back up their claims that their sunglasses are best on the market, thanks to their lifetime warranty. S4 definitely talks the talk, and walks the walk with unmatched durability and amazing design.