Spy Dirty MO Sunglasses The unique SPY Happy Lens technology enriches color and contrast while optimizing the transmission of beneficial rays from the sun and rejecting the harmful ones, for increased mood and alertness. Features: Happy Lens for color and contrast enhancement Dale Jr. signature inside print Constructed from high-quality propionate Sturdy 5-barrel hinges 8x4-base polycarbonate ARC lenses 100 UV protection Bridge width: 18mm Temple length: 121mm Lens width: 59mm