This collarless jacket is made of 70% wool and 30% polyester, using thick and soft wool from the Shetland Islands in northern Scotland, knitted in a jersey on a sliver knitting machine in Italy. The specialized techniques of the sliver knitting machine are used to knit the yarn thickly without excessive twisting, allowing warm air to remain inside the fibers and providing high thermal insulation. This jacket has a collarless design based on a baseball uniform, so it is easy to match with a scarf when worn as an outer layer, and since it has no lining, it is a utility jacket that can also be used as an inner jacket. The placket is fastened with snap buttons and finished with angled hand pockets.