As a rule, ABS plastic products are the most durable, but they turn out to be quite heavy. If you walk in such an accessory all day, your head and neck are likely to get tired from the load. A polycarbonate helmet is less resistant to damage but lightweight. That is why there are now hybrid models on the market: a hard plastic case combined with inner foam. These helmets are considered universal and are suitable for almost all types of rock climbing.