Our Silky Satin 2 in 1 Bonnet is a Protective Perimeter edge band With Tie. The Satin Bonnet Scarf can also be used as a full coverage Edge Laying Scarf! The Satin Weave Lined Band of the bonnet is great for setting/laying down the edges of lace wigs, lace frontals & lace closures with lace wig glues and for setting/laying down natural hair edges into place with edge control styling products after using an edge brush tool! So you can lay your edges and protect the rest of your hair both at the same time all while you sleep!