I love this bun and it's VERY in right now! I don't use a sock though. I put my hair in a loose high ponytail and twist the hair loosely around. I pull the bun to loosen it a bit and voila! Perfect idea for Dorie's hairstyle!
Since I have to do this for Sammie for Halloween. Elsa Frozen Hairstyle How To Get Braids As Big As Her Hair Tutorial Frozen Elsa’s secret to her big, messy, and voluminous French braid. source How To Do Disney’s Frozen Elsa Braid Hairstyle