When you look closely at many bath towels, you’ll notice woven lines or bands—sometimes called “stripes”—near the ends. These are more than just decorative; they’re known in the textile world as dobby borders. Rather than being made of the same loose terry loops as the rest of the towel (which maximize absorbency), the dobby border is more tightly woven into a flat, dense strip. This gives the towel extra structural strength, helping to prevent fraying at the edges and preserving its shape even after repeated washing. According to textile experts, the tight weave of the dobby border acts like a frame around the plush center, reinforcing the most vulnerable part of the towel.

Beyond durability, these lines also serve practical functions for everyday use. The dobby border provides a clear visual guide that helps when folding or hanging towels neatly—a reason why hotels and well-organized homes often align towels along that band for a consistent, polished look. Because the weave is flat rather than looped, this strip dries faster than the rest of the towel. The quicker drying in that area can help improve airflow overall, reducing moisture buildup and potentially lowering the risk of mildew.

There’s also a subtle impact on absorbency and comfort. Although the dobby border itself isn’t as plush as the terry-looped body (and thus doesn’t soak up as much water), weaving techniques that create these ridges or lines can help increase the towel’s effective surface area, improving its ability to wick moisture efficiently. The contrast in texture—soft, fluffy looped areas paired with firm, flat borders—also enhances the tactile experience. Some users even say the firmer ends provide a more secure grip when handling the towel, especially when it’s wet.

Finally, the lines contribute to the towel’s design and perceived quality. The dobby border isn’t just practical; it adds a polished, finished look, and many manufacturers take advantage of that flat, woven area to include subtle geometric patterns, logos, or initials. In many high-end or hotel towels, this border is not only a functional reinforcement but also a signature design detail. While towels without a dobby border still absorb well, they may not hold up as neatly over time.  In sum, what looks like a simple stripe is actually a carefully engineered feature meant to balance strength, usability, and style.