An all-time classic has been sized for a youth fit that doesnt just scale down dimensionsits specially engineered for the anatomy of young faces. That means it looks great, stays comfortable, and does the best job possible at optimizing vision and protection. The iconic look of Frogskins XS pays tribute to our very first dual-lens eyewear, and the vintage styling is signed by one of our first logos.All Oakley lenses offer HDO® Technology with the following benefits:Clarity: Conventional lenses can magnify images. HDO® precision gives less distorted vision across the entire field of view.Refraction: With regular lenses, objects arent really where you see them. HDO® offers a truer visual image so your brain wont have to work overtime.UV Protection: All Oakley lenses block 100% of UVA, UVB & UVC rays and harmful blue light up to 400 nm.