YY Vertical Plasfun First - Belay Glasses

The Y&Y Plasfun First belay glasses offer a comfortable and practical solution to neckache that is often related to belaying with a lightweight and durable plastic frame. Boasting high transparency prisms for optimum vision, the  BK7 prisms offer superb optical performance, and a thin and ergonomic frame offers a wide peripheral vision. Ideal for the gym or crag, the Plasfun First belay glasses can be used with prescribed spectacles or sunglasses thanks to their thin frame and come in a practical package that includes a microfibre cloth, spare screws, and strap.

Details:
- Lightweight and resistant plastic frame    
- High transparency prisms for optimal vision: BK7 prisms have excellent optical performance, the refracted image is clear and not upside down    
- Slightly adherent lining    
- Flexible temples    
- Compatibility with other glasses: Plasfun are compatible with most eyeglasses and sunglasses    
- Wide peripheral vision: the frame is thin and allows you to keep everything around under control: side view to check your movements/downward view to check the rope and safety system    
- Rigid bumper case with zip closure and harness clip    
- Nose pads: large contact surface with the nose for greater stability suitable for dynamic safety
- Weight: 36g