The Optic Nerve Vapor Performance Sunglasses is a new piece that has all the Team Nerve cyclists, triathletes and runners buzzing. Offering maximum visibility and an incredibly simple lens changing mechanism, the Vapor was engineered and re-engineered until the design was perfected. The frame offers a completely customizable fit with an adjustable Tactilite™ rubber nose bridge and temple tips. Three interchangeable lenses come with each pair to best suite bright sun, cloudy or nighttime conditions. Optimum use for cycling.