Polybius describes how the Gaesatae fought at the front, and unlike their Gallic allies who fought in trousers and light cloaks, they went into battle naked, both because of their great confidence and their desire not to get their clothes caught in the brambles. Diodorus Siculus also reports that some Gauls fought naked, trusting in the protection of nature. The appearance and the gestures of the naked warriors in front, 8 all in the prime of life, and finely built men, and all in the leading companies richly adorned with gold torques and armlets. The sight of them indeed dismayed the Romans, but at the same time the prospect of winning such spoils made them twice as keen for the fight, but their small shields offered little protection against Roman javelins, and the Gaesatae were driven back and their allies slaughtered. Concolitanus was captured. Aneroëstes escaped with a few followers and took his own life. In 222 BC the Gaesatae were hired again, but the Gallic forces were defeated by the Roman cavalry at Clastidium in the territory of the Insubres. According to Plutarch, in his "Life of Marcellus", the Gaesatae numbered 30,000 as they crossed the Alps, of whom 10,000 fought at Clastidium.