Zutano Organic Newborn and Preemie Clothing in Meadow March print. Itzy-Bitzy, a premier line of newborn and preemie clothing is an adorable and very special collection that has been meticolusly designed to fit brand new babies. The Itzy-Bitzy line comes in two sizes, Newborn weighing between 4 and 8 lbs., and 0-3 months weighing 13lbs. and 20 inches, which are great for newborns that do not yet fit into the Baby Basics line.