Size: M This is a used item. Worn only once or twice. Selling to clear out inventory. Thank you. What do the numbers displayed with the icebreaker product name represent? A. They represent the weight (g) per square meter (㎡) of the merino wool fabric used in the product. The larger the number, such as 150(g), 200(g), or 260(g), the "thicker and denser the product is, and the higher its heat retention." 120/130 Suitable for the sweaty summer season. 150 A thin product comfortable for all seasons. 200 A mid-weight product that can be used year-round in the mountains, from autumn to early spring. 200 REAL FLEECE A mid-weight material with a warm, soft, brushed interior. 260 A thick product that is warm in the cold season. Description A minimalist long-sleeved shirt made from high-quality merino wool with a smooth feel from New Zealand. The seams, such as the placket, are finished with stretch tape to prevent stitches from standing out. The collar tips have a hidden button-down design that looks like a regular collar from the outside. The placket and cuffs use tape snappers so that the buttons do not appear on the surface, and the chest pocket is a set-in pocket. By incorporating various techniques cultivated in outdoor wear and giving the whole a flat appearance, it creates a technical atmosphere. Features Material: 200gm Jersey (100% wool (using merino wool)) Country of Origin: China Color: (K) Black