This is a Petzl Vertex Vent helmet suitable for various activities such as climbing, work at height, and caving. It is designed to provide safety and protection while in use. The helmet is made by Petzl, a well-known brand in the industry, and is suitable for adult users. The equipment type for this helmet is rope access, and it falls under several categories such as caving & potholing, climbing/ mountaineering, and sporting goods. The helmet has a vent feature that allows for proper airflow, and it belongs to the helmets, lamps & lighting category. It is an ideal product for those in need of a reliable helmet that offers protection while engaging in various activities.