Supernatural M Sierra 140 T-shirt Color: Jet Black Size: M Stored after only one use in low-mountain hiking. The text on the washing instruction tag is fading. I could barely see the product number with the naked eye, so I searched for it. This is a used outdoor item, so please understand. • Manufacturer's description Material: 50% WOOL (MERINO), 50% POLYESTER A thin base layer at 140g/m2. The fabric, which uses a luxurious 50% high-quality merino wool, is a skin-friendly material that combines the benefits of natural materials and functional materials. The moisture absorption and release properties of merino wool prevent the user from getting cold from sweat and also shut out odors. The unique and elegant color of the wool blend material is also a popular factor. The simple and clean silhouette is an excellent item that can be used as a base layer or worn alone. The shoulder seams are placed on the front side, and a flat seam sewing method is used to reduce discomfort on the skin.