SEW IN Weave Invisible Part Weave No Glue on Hair. INVISIBLE PART WEAVE SEW IN BEST Invisible part SEW IN that keeps glue OFF the hair. NEW TECHNIQUE using wig cap. Braiding Hair for Sew In Weave technique. Full Invisible Part Weave. The head is completely covered using a wig cap. Other parts of this tutorial show how to sew in weave for a side part, how to create the invisible part weave, and how to complete the invisible part weave closure.