The Spatzwear \'RACE LAYER\' is like nothing else on the market. Designed to offer the warmth of 2-3 traditional garments without the extra weight or bulk. Perfect for both racing and training, it is developed to sit close to the skin - ideal for use under modern aero jerseys. It is warm, dry, aerodynamic and incredibly comfortable. Used in a race situation, the \'RACE LAYER\' packs so much warmth you may not even need a gilet or rain jacket if the weather turns biblical. It allows you to stay aero, light and warm to keep your focus on the racing, not the weather.... Extended rear section. Sleeves to elbows. Moisture managing fabric. Thermal yet lightweight design. Quick drying. Warm where you need warmth with no unnecessary bulk or weight. Worn next to your skin, the \'RACE LAYER\' is designed with revolutionary inner textures and profiles to trap a layer of warm air and actively transport moisture away from the skin. Cyclists have needed a base layer like this for decades. Here it is... A base layer developed from scratch and rigorously tested by the current Olympic Champion. Very warm and comfortable with yarns, thicknesses, weaves and cut designed specifically for cycling in the cold / wet. Sleeves can be worn down to the elbows or the fabric will concertina up to sit high on the arm.The \'RACE LAYER\' can be worn alone underneath a race jersey or add additional layers over the top to suit the temperature. It is truly a 4 season garment. Nobody has ever created a base layer like this. It is totally revolutionary and will change your riding forever.