It feels like it has shrunk after washing. I think it's better to consider it a size S. Details: Made with 100% high-quality wool, approximately 19.5 microns, it's soft, fluffy, and warm. The fashion mark around the shoulders adds a knit-like touch. Specifications: - Hand washable. Specifications: - Sheer: None - Top Fit: Regular - Pockets: None - This product's name has been changed from Premium Lamb Crew Neck Sweater (Long Sleeve) to Lamb Crew Neck Sweater. The tag attached to the product delivered to the customer may still say Premium Lamb Crew Neck Sweater (Long Sleeve). - XS, XXL, 3XL, and 4XL sizes are only available online. - The images may include colors not planned for sale. Product Numbers: 478541, 469400 Please note that the product number and product name on the tag may vary even for the same product. Materials & Care: Materials: 100% Wool Care: Hand wash, dry clean, do not tumble dry. Wash separately. May fade in the wash. May transfer color to other items. Please be careful when pairing with light-colored clothing. When wearing, please be careful as color may transfer to other clothing, accessories, and items such as sofas and car seats. UNIQLO / Model: Lamb Sweater UNIQLO / Material: Lamb Stains, tears, odors, etc.: Yes