An effective layering system is the key to defending yourself against the cold, and the men's Millennium Yakwarm top is an essential midlayer for intensive winter running challenges. Thanks to the innovative blend of yak wool fibres and polyester, this high-performance top delivers exceptional insulation and thermoregulation. Body mapping provides advanced moisture management and ventilation as you work up a sweat, and the seamless construction and natural feel of the yak wool fibres give a high level of long-wear comfort — keeping you warm and comfortable in all conditions. For a super-soft midlayer that offers premium performance all winter, choose the men's Millennium Yakwarm midlayer by ODLO.