and Vertical Clip UP Belay Glasses

The Clip Up is an evolution for all spectacle wearers.
Just clip it on your own glasses
and belay your partner with comfort.
It fits on most glasses and sun glasses
and with a small movement it can be switched
between the positions Off and On.
The trapezoid-shaped prisms allow a wider vision
on the climber while keeping an important peripheral vision.
  Clip and belay!