This Replacement Lens Compatible With Lo Fi Goggles Helps Amplifies Color Contrast Especially In Snowy Or Overcast Light Conditions , Enabling The Eye To Identify Terrain Variations BetterBenefits:Improved Visual Acuity:- Sigma Lenses Amplify Contrast To Help You See Terrain Details Better, Especially In Snowy Or Overcast Light Conditions.Specifications:- Accessory Type: Goggle- Lens Shape: Cylindrical- Franchise: Lo Fi- Lens Technology: Sigma