The official headphones of the Zollhaus Open, the German ice-swimming championships at the Landhotel Altes Zollhaus, in the Erzgebirge. Black, made of silicone, with the butterfly swimmer logo set against a backdrop of waves and ice on one side and the logo Addicted To Nature on the other.
For training in cold water, whether in a swimming pool or the sea – and as a memento for those who have swum in freezing water.