Surprisingly, this seventies throwback is perfectly at home in this decade. The artistic director for Matrix, Michelle O'Connor, says "It's ultra-modern, has a sleekness that hugs the face and allows you to play with the piecey-ness that only curly tendrils can give you" (via SheFinds). O'Connor certainly knows what she is talking about. The shag hairstyle is ideal for highlighting the face in all the right areas.

When done right, the layers of a shag cut help to remove bulk on the sides and ends. Not only does this make the hairstyle look shapely, but it also can bring some much-needed relief if you find your voluminous hair a bit heavy at times. Face framing layers can help soften the silhouette of more defined face shapes, like square or rectangular. Add some fun fringe via shag bangs to further frame the face and diversify your haircut. Who doesn't love a contour effect that doesn't require any makeup?