Metolius Upshot Belay Glasses Purple. These glasses help increase peripheral vision when holding the belay rope. These Metolius Upshot Belay Glasses are a great addition to your rock Belay & Rappel kit. Features of Metolius Upshot Belay Glasses: Designed to help reduce neck strain and fatigue while belaying at the gym or crag Low profile frames for enhanced peripheral vision Optimized prism size Lightweight for all-day comfort Package Contents of Metolius Upshot Belay Glasses: Metolius Upshot Belay Glasses Lanyard Hard Case Lens Cloth Metolius BGLA002: Upshot Belay Glasses Black Metolius BGLA002.02: Upshot Belay Glasses Blue Metolius BGLA002.10: Upshot Belay Glasses Purple Metolius BGLA002.10: Upshot Belay Glasses Purple