M2251 This is a Patagonia cotton box-type shirt. It's a used item, and the product number is 53001SP11 (Spring 2011). It has a square-cut, boxy hem. The material is a seersucker blend of 65% polyester and 35% organic cotton, offering quick-drying and moisture-wicking properties for a cool and comfortable feel. The color is a gray-based check pattern. The size is "M". Please check the detailed measurements below. Regarding the condition, it's a used item but in good condition. There are no noticeable stains, damage, or fraying. However, the first button is missing. Please be aware of this before purchasing. * Although we check carefully, there may be minor, inconspicuous stains or dirt that we may miss. Please understand this as it is a used item. We will accept returns if there are any defects other than those mentioned in the description or photos that affect wearability. Size "M": Shoulder width 45cm, Body width 55cm, Sleeve length 24cm, Length 72cm * This item is not subject to price reduction. Thank you for your understanding. ☆ Instant purchase is OK. ☆ Shipping may not be available on weekends and holidays. ☆ This item is also listed on other sites and may be removed.