YY Vertical has been a pioneer in belay glasses since 2013. Belay goggles protect your neck when belaying for optimal comfort.
Neck pain while belaying? Prism glasses allow the climber's image to be sent back to the belayer without him having to raise his head. They revolutionize the practice of belaying by providing comfort, concentration and safety.
Les lunettes à prismes permettent de renvoyer l'image du grimpeur à l'assureur sans qu'il ait besoin de lever la tête. Elles révolutionnent la pratique de l’assurage en apportant confort, concentration et sécurité.
