The Smith Knowledge Over The Glasses Goggle offers exceptional fog prevention, comfort and fit for eyeglass wearers. Features: Large Fit Carbonic-X Lens with TLT Optics Patented Regulator Adjustable Lens Ventilation Floating Foam Membrane Eliminates Eyeglass Temple Pressure Articulating Strap Positioning System Ultra-Wide, Silicone Backed Strap QuickFit Strap Adjustment System with Clip Buckle Dual Layer, DriWix Face Foam Helmet and Eyeglass Compatible Microfiber Bag Included