A windbreaker that is both lightweight and heat-retaining, using AIR THERMOTION, a lining that doubles as batting. The lining uses hollow fiber with a cross section divided into 8 pieces. It achieves heat retention by containing a lot of air in the hollow part. In addition, by raising the lining like batting, it also functions as batting. A regular padded jacket consists of three parts: outer material, batting, and lining, but the lining also serves as batting, making it extremely lightweight. The outer material has excellent windproof and water repellent properties, and repels light rain and wind. It also has a stretch function that does not restrict your body movement. Function: Stretch, windproof, water repellent, heat retention.