Thank you for viewing. This is the WAIPER.inc VENTILE Ventile 1st TYPE T-BACK Jacket with Neo-va buttons, made in Japan. I am selling it because my interests have changed. WAIPER.inc VENTILE Ventile 1st TYPE T-BACK Jacket with Neo-va buttons, made in Japan. This jacket is a reproduction of the famous vintage denim jacket "1st TYPE T-BACK," which was also popular in the remake line. This time, it is made using "VENTILE Ventile," a fabric developed in England during World War II for pilot uniforms! Ventile is a cotton fabric woven with ultra-fine cotton yarn, woven to the limit, with a much higher density than ordinary fabrics. Ventile, woven at high density, repels water, and it is said that the lifespan of pilots who were shot down at sea in fighter planes was extended from a few minutes to over 20 minutes due to the cold seawater. Due to its material properties, it is still recognized as a very expensive material in high-density natural fiber fabrics. The back yoke and center back seam, which give the design its name "T-back," were details born because the fabric width of denim at the time was narrow, and sizes 46 and above required the back to be split into two parts to have enough fabric. The Ventile size range also adheres to the original, with sizes 46, 48, and 50 produced. The jacket features the 1st-specific details such as front pleats, a cinch back to adjust the fit at the waist, and Neo-va buttons. The buttons have been updated from plastic to metal. Rivets reinforce areas that are subject to stress. The pattern and sewing are all completely handmade by domestic craftsmen. Each item is made by hand, resulting in small-batch production. This is a WAIPER.inc item filled with attention to detail.