The SP-2 clay shooting glasses equip the competitive shooter with two of our most desirable lens colours for target contrast enhancement & background neutralisation with added light management. Good For: Medium bright conditions Green backgrounds, blue skies & open fields Orange clay contrast boost Sporting discipline Lens Colours (scroll down for further information on each colour): Rose Diamond LTV 18% (Conditions: Medium bright Light) (Primary use: Boost contrast) (Contrast Level Medium boost) Deep Purple LTV 19% (Conditions: Medium bright Light) (Primary use: Neutralise backgrounds boost contrast) (Contrast Level High boost)