The Real Purpose of That Part of a Towel

cloth, a fabric characterized by its small loops. Those loops give towels their familiar soft, textured feel and help them absorb moisture.

The dobby border is woven differently. Instead of the raised loops found across the main body of the towel, it has a smoother, flatter surface. Depending on the manufacturer, it may be plain or decorated with subtle geometric patterns, stripes, or other woven designs.Explore Bath Decor

The word dobby refers to a weaving technique that uses a special loom mechanism to create small, repeating patterns in fabric.

In other words, that flat strip is an intentional design feature