Ray Ban Clubmaster Sunglasses in Green / Tortoiseshell. Inspired by the 50s, these classically designed sunglasses offer a stylish and iconic look. Finished with tortoiseshell frames and gold detailing with green-tinted lenses. The classic G-15 lenses were originally developed for military use and give a high level of clarity and protection. The green tint to the lens absorbs 85% of visible light and blocks out most of the blue light, providing a remarkable colour contrast. This all helps to ensure a more natural vision.