Hello dear customer, The pattern of our product is **fitted**. For these types of products, it is generally preferred to choose one size larger than your own for more comfortable use; however, it is not possible for us to give a clear size guidance. In your question about whether **S or M** would be more suitable for size 36, we kindly ask you to decide according to your body measurements and how loose/fit you want to use the product. Since the detailed size information you requested is not shared by the manufacturer, we cannot provide you with exact information on this matter. Additionally, we kindly ask you to **review the size chart and customer reviews on the Trendyol page**, it will be quite helpful in your decision-making process. Thank you for your interest. 🌸