This scalloped lace fabric is named by its scalloped edge.Some customer prefer scalloped edge and some like to make straight line for the bottom and top part.For polyester material,it will be the same for us to make it flat.However,if we make it with cotton thread,we like to add straight line because we need to iron the lace.After we dye to color to cotton material,there will be many crinkles.So we will iron it with special iron machine.If there is scalloped edge,the lace shape will change.If with straight line,the line will become symmetric.