A HEAT REFLECTOR: The unique XITANIT™ fi bre allows the outer surface of the shirt to refl ect external radiant heat. Boiling hot sunshine, gleaming black asphalt and heated building facades are all environmental factors that raise a runner‘s temperature. This radiation is prevented from penetrating to the skin of the athlete and is refl ected outwards. The effect is palpable; the jersey heats up on the outside but stays cool on the interior. External sources of heat are neutralised. CONDUCTION OF BODY WARMTH: The high degree of conductivity in XITANIT™ conducts body warmth to the outside. HEAT PIPE SYSTEM: The heat pipe design is a tiny separate microcosm in cooling dynamics. The special knitting technique forms micro ducts. Sweat advances through the ducts and is heated up and evaporated on the warm outer surface. A chill from the sweat evaporating occurs. Part of the moisture condenses and is absorbed back into the skin in a cooler state. A cycle is in process which draws the excess sweat to the surface and converts it to cooling. No wet sensation, with perfect cooling.