Hello dear customer, Thank you for your interest. Our product is in a regular fit, so you can generally prefer the size you use daily; however, unfortunately, it is not possible for us to make a clear recommendation regarding the size. Since the model's body and measurement information is not shared by the manufacturer, we cannot provide you with an exact comparison in this regard. Therefore, we kindly ask you to: - Consider the sizes of other t-shirts you use, - Review the product size chart if there is one, - Especially check the "fit tight/loose" feedback in customer comments. Thus, you can choose the most suitable size for you in a healthier way.