At LO FI SIGMA™ simplicity and progressive style meet high performance. It convinces with clean design, cool textures and advantages such as Salomon’s Custom ID Fit technology, which adapts perfectly to your face, quick-change lenses and an enlarged field of vision. The SIGMA™ lens technology improves the perception of the terrain. SIGMA™ lens The SIGMA™ lenses provide better contrast vision so you can see the details of the terrain more quickly in all lighting conditions. FeaturesSIGMA™ lens Custom ID Fit The A-shaped frame for a wider field of visionAdvancedSkin ActiveDry foam achieves efficient moisture transport through the foam construction to keep the skin dry.Airflow systemDual-slide buckle adjustmentSilicone-coated retaining strap