SIDE IN POCKET SHIRT Material: 70% Wool, 30% Polyester Using the "wool recycling" technology from Bishu, a wool-producing region, vintage clothing is collected and the wool is extracted to make yarn. This is a reuse material made from the resulting fabric. This is a medium-weight shirt with a strong brushed surface on both sides of the fabric, designed to maximize the texture. Flat measurement data (※Please note that there may be some errors due to the use of a measuring tape.)