Popcorn without hulls means reduced hull content. All popcorn has a hull. The small varieties of popcorn are considered hulless. After popping, most of the hull disintegrates, leaving a tender kernel. Hulless popcorn is not suitable for air poppers. When popped, small popcorn is tender with antioxidants and high in fiber. This whole grain food is GMO-free and not recommended for air poppers.