Cotton jersey can be 100% cotton or cotton blends. 95% cotton mixed with 5% spandex / lycra is one of the most popular types of cotton jersey because spandex can improve the stretch and recovery of the fabric.
Knotted gown is one of the newborn baby onesies. It just offers knotted at the bottom of the gown for untie and retie. A knotted baby gown is often used as a “homecoming outfit” from the hospital to home.