Smith Shift Split MAG Sunglasses Frame/Lens:Matte Stone Moss/CP Green Mirror one of the lightest electronic

one of the lightest electronic one on the market to date

intense steeps to  family touring

these glasses feature an interchangeable lens system that adapts to changing light conditions—perfect for kayaking

composite or plastic board or boat

Also features a durable and smooth-running Delrin® sheave

Smith Shift Split MAG Sunglasses Frame/Lens:Matte Stone Moss/CP Green Mirror one of the lightest electronicPut it into high gear with the Smith Shift Split MAG sunglasses. Their split frame design provides an obstruction free view of the road and trail with a lightweight feel that stays put through technical trails and full gas descents. With ChromaPop lens tech, they ensure crisp visuals to keep you on track and charging. Interchangeable lenses let you choose the right tint, and the Smith MAG system makes for quick, fingerprint free lens changes thanks to