​​​​​​​​​​​​Braided Sew-Ins are one of the oldest hair extension techniques. This technique set the standard for hair extensions and because of them, many different hair extension techniques were born. Unfortunately this technique isn't the safest weft technique. Because of the braiding, and then sewing, the hair gets more stressed than with other weft techniques. The braid has to be done fairly tight in order to ensure longevity, and sewing over that begins to pull the hair even more. This technique also can't be tightened so the client will have to fully remove them and reapply when they start to grow out. Regardless of these cons, a lot of people still use this method.