Cairn Sunglasses Racing 101 Matte White Black Flash Grey Photochromic. Introducing the Cairn Racing sunglasses, designed for fast-paced sports enthusiasts. These sunglasses feature Cairn’s 'Ultimate' lens with advanced photochromic technology, which adjusts from Category 2 to Category 4, ensuring superior visibility in varying light conditions. For added versatility, the sunglasses come with a detachable strap, and their superior wrap-around protection ensures a secure and comfortable fit during intense activity. Unisex in design and perfect for high-performance sports, the Cairn Racing model is available online at a big discount from the recommended retail price (RRP), offering both functionality and great value for money.