The goggles are made of plastic. There are ventilation holes around the protective lens. The elastic rubber band located on the outer part of the glasses minimizes the glasses pressure on the nose and the cheekbones. The elastic adjustable mount makes that the glasses fit the head perfectly and do not slide down.
Example photo. The goggles are not equipped with the overlay visible on the mounting belt.
The product does not provide ballistic protection of the eyes and using it for that purpose is against its destination. The durability tests showed that dents, scratches and cracks may occur on the lens/screens ( or even the holders )when hit with a BB pellet.
The distributor and the manufacturer will be not held responsible for using the product for eye protection during events using ASG replicas. This also includes all of the health consequences of the user and the damage done to the product which cannot be a subject to the warranty when damage because of the aforementioned reasons.