That's the natural curl. I actually just dried it. But I also wanted to say there is NO smell! I've used heat on it. Dried it. Put hair spray on it. Deep conditioner it. Messed with it all the ways I could haha. And nothing. It's just like my natural! The other place I got my old extensions as soon as I used heat it would smell. I could never style it with an iron. I just love them.