First things first: Sew-in weaves are a process where your natural hair is braided down into cornrows, says Nash, and a needle and thread are then used to sew down hair extensions onto the braids.

Jourdan Dunn's side-swept braided style will never not be one to screenshot. The fact that the flat-braiding stops a few inches in gives Dunn the versatility to twist her hair into a topknot or a high ...