Simply the cutest unisex romper for your little one! If you already use this nickame, this shirt is a no brainer, you can even customize it to choose a BLUE PINK, or RED fry container. Also, this onepiece makes a high quality present, as it's made with the highest standard of organic cotton. Mamas, be assured that the thick cuffs, leg openings, and neckline hugs babies, and will continue to be snug, even after washing, and will last for years to come. Hello, hand-me-downs! *GOTS Certificate Registration No: 819511. Age and Weight: NB: 5-7 lbs; 0-3M: 7-12 lbs; 3-6M: 12-16 lbs; 6-12M: 16-24 lbs; 12-18M: 24-30 lbs.