Knotted Baby Gowns: Infant Comfort Guide Harp Angel Boutique Harp Newborn Knotted Gown Sets Bright + Tiny Newborn Knotted Gown Autumn Copper Pearl Newborn Knotted Gown Sets Bright + Tiny Newborn Knotted Gown Mabel Copper Pearl. PREMIUM POLYESTER RAYON BLEND Made with the same premium knit fabric as our beloved swaddles, this soft and stretchy gown ties at the bottom for easy diaper changesand has room to grow. GENEROUS SIZE A length of 25 inches and width of 8 inches. BONUS FEATURES Our knotted gowns feature unique snaps to make dressing a breeze, along with fold over hand mitts to prevent scratching.