This stylish short cut, first popularized in the 1920s, has many famous fans. For a classic bob, make sure your ends reach your shoulders (if your hair is curly, they should fall just past your shoulders to compensate for shrinkage). Have your stylist lightly razor the tips so that they flip a bit. Ask for longer locks in the front, with angled, blunt edges gradually becoming shorter toward the back. "The swingy layers of the bob flatter all face shapes, from round to oval or square," says New York City hairstylist Sean James Decuers. This shorter length can also plump up fine hair by taking away some weight.
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