Best adaptability and style. The frameless Salomon Radium Pro is just right for all outdoor enthusiasts who place particular value on adaptability and style. The colour-enhancing SIGMA™ lens with Anti Fog+ ensures that your goggle won't let you down, even under the toughest conditions.SIGMA™ Black Gold lensSIGMA™ lens enhances colour contrasts so you can see terrain details faster in all lighting conditions.