Unmatched Light Protection + Comfort in a Smaller Frame: Casting your rod across a high mountain stream or out on the lake wacky rigging for big bass, for those that demand performance no matter the setting, we created the Smith Guide's Choice S, with a smaller frame for a better fit Lightweight, Durable Frame: Built with sustainable Evolve bio-based frame material that’s lightweight and durable; spring hinges add extra flex for comfortable snug fit Make the Details Pop: Features ChromaPop lens technology that helps enhance definition, contrast and natural color so you never miss a detail; the smudge- and moisture-resistant coatings mean easy cleaning & clear optics Case Included: Your new favorite sunglasses are protected thanks to the included detachable sunglass leash, hard case and microfiber pouch Born on the Mountain, Built from Innovation: Smith is a performance eyewear and helmet brand for those inspired to pursue new and deeper connections with the outdoors; we’ve been outfitting consumers with the confidence to experience more since 1965