Overtone Slim Rx | Matte Blue Ygroup_Altus Replacement lens for the Smith

Replacement lens for the Smith Optics 4D MAG S goggle

Attack MTB replacement lenses for varying conditions

venting and fog-free performance

Five strategically placed vents for optimal airflow

Overtone Slim Rx | Matte Blue Ygroup_Altus Replacement lens for the SmithVision All Smith clear lenses come standard with a Premium Anti Reflective coating, on the front and backside of lenses, which reduces glare to prevent eye fatigue and gives better visual acuity True optical clarity, through lightweight Polycarbonate lens material made for daily and active wear Superior hard coating, for improved scratch resistance Hydroleophobic coating repels water, dirt, and grease Photochromic options available Fit Integration