How to Choose a Climbing Helmet

* Foam interior helmet: the shell in this case is supported by a crown of polystyrene or polypropylene closed-cell foam. In case of an impact the foam is crushed permanently to absorb the blow. The shell in this type of helmets can vary from a thin plastic shitting (example Petzl Meteor III) to a semi-rigid plastic shell (example Petzl Elios.) These kinds of helmets are more popular. They are lightweight but less durable. * Harness suspension helmet: A strong shell, commonly of polycarbonate, is supported by an interior webbing suspension system. In the face of an impact the shell deforms absorbing the energy of the blow. These are more durable but heavier helmets.Some Helmet Criteria-Fit: The helmet mus rest properly on your head. Modern helmets have a number of straps that make it adjustable. Some models come in different sizes. Make sure your helmet fits as per the manufacturer’s suggestions. Ventilation: The walls in Yosemite can get warm during the summer and even in cooler weather, you can cook in the sun. Having vent slots on the helmet can help significantly with the heat. There is a trade off as more vents offer less protection. Weight: Heavier helmets offer more protection and durability. Lighter models can be nicer to climb in but take fewer impacts before they break. Know what kind of climbing you will be doing- trad routes, big walls, alpine climbing, and cragging can each have a different type of helmet.