You only have a single head. Keep it, you may need it.
Right Choice and Usage of Helmets
No paddler should practice on white water (even if it is less difficult) without a helmet. Sudden blow to your head with the risk of fainting under the water gives you a one-way ticket to the hospital or directly to the cemetery.
Choose the helmet according to your requirements and conception. For more difficult conditions we recommend Full Cap, a closed helmet that covers ears and scruff. For less difficult conditions and racing tracks with professional first aid at hand Short Cap is suitable.
Choose the proper size carefully, if needed adjust it so that it fits tight to your head. A helmet that is too big will slip off your head in most extreme situations, too tight one will press and make you feel uncomfortable.