Trending Bubble Pigtail Hair Half Up Half Down / One of the biggest benefits of half up hairstyles (on natural curly hair) is that they are so quick to create and in most cases don't require a visit to the salon. Long hair looks precious with half up half down style. Bubble Pigtail Hair Half Up Half Down - For styling, you only need to use a few of them to create a large bubble pony design by creating two knots.