The Mystery Line on Towels

A viral post asked about the “strange raised line running across many bath towels,”

joking it was a “face-to-butt separator” or a “racing stripe.”

The real answer is practical: it’s called a dobby border.

Purpose and Durability

Textile experts explain the dobby border “helps towels hold their shape and last longer,

especially after going through many laundry cycles.” It reinforces edges,

preventing fraying and wear, which is crucial for frequently used bath towels.

Function and Comfort

The border also keeps towel ends from becoming bulky,

allowing towels to “fold neatly, and remain soft and easy to use,”

while maintaining absorbency.

Design Benefits

Manufacturers can use the dobby border for subtle patterns,

textures, or logos without affecting comfort.

What seems like a small detail actually helps towels “look good, feel better, and last longer.”