When performance matters, protect your eyes with GUNNAR, featuring a durable nylon frame, Oakland’s rounded square shape, fixed nose ridge, and medium fit suitable for various face shapes; key features include sturdy multi-barrel hinges, GUNNAR patented lens technology that blocks harmful blue light and 100% UV, dual-sided anti-reflective lens coating, and Low Bridge Fit compatibility, with specifications of lens width 53 mm, lens height 41 mm, nose 20 mm, frame width 133 mm, temple 140 mm, and a weight of 22 grams (without packaging); included with purchase is a microfiber pouch and a 12-month warranty.