Welcome to our store: Solid color: 100% pure cotton;. All products in the store are original designs. Product Description: Shirt: Round neck - Short sleeved Size: S-5XL Warm Reminder 1. Regarding size: The size is based on the official size chart. You can choose a larger size 1-2 to ensure that the size fits you. 4. Regarding the issue: If you have any questions, please contact us promptly. We will do our best to solve this problem. Regarding comments: If you are satisfied with our product, please provide a five-star review to inform more people. thanks