The Enigma, Rainbow Edition offers performance, protection, and equality for all with its durable nylon frame material, rectangle shape, and curved nose rest; 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 a prescription range of -5 to +5, with specifications of lens width 58 mm, lens height 38 mm, nose 18 mm, frame width 141 mm, temple 135 mm, and a weight of 33 grams (without packaging), and it comes with a microfiber pouch, microfiber cleaning cloth, and a 12-month warranty.