Dear customer, thank you for your interest. Our product is a regular fit, so while we can't give you a precise size recommendation, we generally advise sticking with the size you normally wear. Since weight alone is not enough and height and body measurements are also important, we cannot give an exact guidance for the right size. When determining the most suitable size for you: - Consider the size of the t-shirt you wear in daily life. - Review the product images and size options. We also kindly ask you to read the comments other customers have made regarding the size. In this way, you can choose the size that suits you best in a healthier way.