To determine your size, loosely measure from the top of your shoulder to the top of your opposite hipbone with a tape measure. Generally, the size of your With Child Baby Pouch will be comparable to your T-shirt size. Consider your bust, torso length and frame while measuring. If you have broad shoulders, a large bust (DD+), a big baby or prefer a low carry, order a size up. If you have a petite frame or shorter torso and prefer to carry your little one up higher, order a size down. If your sling is too large, a slight adjustment can be made by twisting the fabric that cups your shoulder, exposing the interior fabric. If you have any questions or your measurements fall outside of the size chart, please contact meghann@withchildgifts.com.