A shirt inspired by the pocket structure of the M-65 Fishtail Parka, incorporating wool fabric as the interlining. In the M-65 Fishtail Parka, wool fabric is used in the pocket lining. Over years of wear, the wool fabric tends to shrink, affecting the pocket openings and flap areas. To replicate this characteristic, we created a shirt using wool fabric as the interlining. During the manufacturing process, the heat treatment causes the wool interlining to shrink significantly, resulting in wrinkles on the outer surface. For this particular model, the outer fabric is made of cotton.