This Geo T base layer has been developed specifically to keep sportsmen and women warm on cold days enabling them to concentrate on achieving their peak performance. High neck for extra protection against the cold. Flat lock seams prevent rubbing for added comfort. Constructed from a durable 90% polyester, 10% elastane combined material, ensuring a tight fit and drawing sweat away from the skin and keeping you dry and comfortable. Pro cool technology for warmth and dryness.