Hello dear customer, thank you for your interest. The pattern of our product is **regular (comfortable) cut**, you can generally prefer the size you use daily; but unfortunately we cannot tell you an exact size. Since you want it to look loose, we kindly ask you to specifically examine the size in the size chart that is larger for these measurements according to your chest and hip measurements. Our model's measurements: - Height: 1.75 cm - Weight: 52 kg - Chest: 80 cm - Waist: 61 cm - Hips: 89 cm - Size on the product: S. Please review the size chart and customer reviews to make a healthier decision. Thus, you can better determine your posture.