Helmet Head Joker Junior rental in Selva di Val Gardena! Try our range of Head helmets. The Joker helmet is packed with the features, style and protection of HEAD’s adult line. The helmet’s size and fit features 2D adjustability, which provides supreme comfort and added wearability for growing kids. While a soft lining, removable ear pads and Thermal Ventilation give kids a comfortable, more confident experience, so that staying safe on the hill becomes instinctive.