The tag indicates the Japanese size is S. Set of two classic, relaxed-fit crew neck T-shirts. Short sleeves. ⚠️Photos on the website are for illustrative purposes only! 　Please be sure to check the actual product photos❣️ ⚠️To offer the lowest possible price, we may ship the item without the box due to shipping costs. ⚠️We may change the shipping method (e.g., Rakuraku to Yuuyu) depending on packaging. 　Thank you for your understanding. ⚠️If there are any issues, please contact us before leaving a review. Click here for a list of products from #na_na_shop ✨☜ Amazon Essentials focuses on making everyday wear affordable, high-quality, and long-lasting. A line of men's essentials, including polo shirts, chinos, classic fit shorts, casual button-downs, and crew neck T-shirts. [Amazon Essentials] Multipack T-Shirt Crew Neck Regular Fit Short Sleeve Men's XS Size Spring, Summer, New Life, Sports Day, Culture Festival 16-26 0002