Unique and Innovative, these Collapsible Lens glasses are the world's first sunglasses that won't fall off! Simply slap the arms around your wrist when not in use and you'll never have to worry about losing them! With their durable, silicone-coated arms, you can wear them on your wrist, ankle or even curl them around a bag strap or handlebar.
Frame Material:Black Nylon TR90, durable and resistant to chemical/UV damage
Arms:Sprung steel "slaps", covered with silicone in original colors.
Lenses:Polycarbonate UV400 lenses, Anti-Reflective and Scratch-Resistant