This light weight goggle has a flexible lens and frame to accommodate any face size or shape. It's the perfect eyewear to prevent watering eyes during those cold winter road rides or to keep out dirt, mud, sand while mountain biking. Ample vent holes on each side keep it from fogging. This goggle will also fit over some smaller prescription glasses. Tinted (Grey) lenses provide 100% UVA and UVB protection.