This is a mock neck from TOMORROWLAND. It feels very soft and is useful as an inner layer. Excerpt from the official website below. The must-have mock neck is tough and sophisticated. The mock neck, which fills the gap between a sweatshirt and a long-sleeved T-shirt, is a hot item this season. Using rare Suvin cotton in a smooth finish, it not only achieves a very smooth feeling, but also creates a higher-grade presence with its natural luster. It has a cocoon silhouette with tapered sleeves and hem, and is finished in a way that is irresistible to clothing lovers, as it looks ordinary but is a little different. Size: S Length: 70cm Bust: 58cm Shoulder width: 54cm Sleeve length: 54cm Material: 100% cotton Country of origin: Japan Manufacturer part number: 63-03-14-03006 *Please purchase only if you understand that this is a used item.