Radium Pro Sigma frameless goggles are designed for outdoor enthusiasts looking for high performance, comfort and style and meet all the requirements for endless days of fun. Top-of-the-line ventilation has been combined with a colour-amplifying SIGMA™ lens with Anti Fog +, so you can enjoy a goggle that won’t let you down no matter how hard you choose to go. The glasses offer enhanced field of view and Custom ID Fit technology, a technology that keeps the goggles on thanks to their no-slip silicone strap.