A technical cold weather base layer with superior thermoregulation capabilities and body temperature control. Key Features: Thermoregulation - Using Polartec®’s technical performance materials to offer highly effective body temperature control through exceptional moisture management, breathability and dry-time Extra coverage - Integrated neck warmer covers the mouth and ears when worn high for extra coverage in cold weather Comfort - Soft and textured interior for ultimate next-to-skin comfort How To Wear:Wear beneath a thermal jersey or jacket in the winter or under a midweight jersey in spring.Designed to sit close to the skin and fit under all jerseys and jackets in Rapha’s range. Care InstructionsMachine wash at 30C in garment bag or hand wash, Do not bleach, Do not tumble dry MaterialsFront: 91% Recycled Polyester, 9% ElastaneBack: Polartec: 85% Recycled Polyester, 15% Elastane