Discover the beauty of nature with Muir, a key style in our innovative ARBOR Collection, inspired by the primeval forest, Muir Woods; these glasses combine elegance and essence, featuring sustainably harvested ebony wood reinforced with an internal carbon fiber layer for firmness and lightweight durability, flexible spring hinges for a customizable fit, and advanced lens technology providing the best viewing experience in GUNNAR’s premium blue blocking eyewear, complete with G-Shield® lens coating that is anti-reflective and smudge resistant, and proprietary polyamide lens material for crisp optics while blocking harmful blue light and 100% UV. Specs include a lens width of 50 mm, lens height of 39 mm, nose width of 20 mm, frame width of 132 mm, temple length of 145 mm, and a weight of 20 grams (without packaging). Each purchase includes an eco-friendly glasses case, eco-friendly microfiber pouch, eco-friendly microfiber cleaning cloth, and a 24-month warranty.