Mammut Skywalker 3.0 Helmet

From Als.com

The legendary Skywalker is a versatile helmet for a full range of climbing adventures. The hybrid construction uses a cutting-edge combination of an EPP and EPS inner shell in a robust hard shell. Foam padding over the entire inner surface offers reliable protection from impact, even on the side, front and rear. The fine-tuned design includes features like matte surfacing on the outer shell, large ventilation openings, and easy, one-handed size adjustment. The helmet sits compactly and has additional inner cushioning to better cater to the unique size and shape of your head.