The top of the base layer "Cerro" from Whistler combines the functionality of powerful natural materials with a feeling of quality and comfort. This long-sleeved body layer made from non-mulesed merino wool and Lyocell fibres is naturally breathable, moisture-regulating, odour-resistant and antibacterial. It also features an irresistibly soft texture and a comfortable fit, making it an ideal base layer for winter sports, outdoor activities or running.