A recent social media debate has sparked curiosity about the mysterious lines on bath towels. While some joked that they serve as “face/butt delineation lines” or “racing stripes” for faster drying, the real purpose is far more practical,
This design feature, known as a “dobby border,” plays a crucial role in strengthening the towel, enhancing absorbency, and preventing fraying over time. By maintaining an even structure, it keeps the towel lightweight, soft, and efficient for drying.