In Japan in the early 1920s, "sashiko" stitched fabric was used as the base cloth for first to third base. In order to reproduce this, Jackman commissioned a martial arts equipment manufacturer established in 1918 to complete a "sashiko" fabric woven on a special loom using No. 20 cotton yarn twisted to the limit in order to produce a distinctly uneven surface. It is then paraffin-waxed and bio-washed to soften the texture for easy wear. UF jacket with a baseball uniform arranged as a jacket. With a distinctive front turn-out,. Large seam pockets on the sides.