Why Do Bath Towels Have Stripes on Each End?

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Uncovering the TikTok mystery of towel lines & their purpose

Co-authored by Rani Gorgis and Bertha Isabel Crombet, PhD

Last Updated: September 11, 2025 Fact Checked

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Why do bath towels have lines on them?

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Are they necessary?

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Caring for Towels

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Signs of Quality

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Bath towels come in all colors, shapes, and patterns, with many unique designs to match your preferred bathroom decor. However, one thing almost all of them have in common is the stitched pattern near their edges. If you’ve ever noticed the horizontal lines that run across a bath towel, you might be wondering—what are those, and what are they for? Keep reading for an in-depth breakdown of these towel lines and why they exist.

What do the lines on bath towels mean?

The lines on a bath towel are known as “dobby borders,” and they’re there to make the towels more durable over time. They help the towel retain its shape, and they also reduce fraying over the years of washing. Dobby borders can also make towels look tidier and more fun to look at!

Section 1 of 4:

Why do bath towels have lines on them?

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Some bath towels have lines (or ‘dobby borders’) for better shape and durability. The lines that sometimes appear on the end of a towel are known as “dobby borders” ("dobby" is the name of the weaving attachment traditionally used to create the geometric pattern itself). These lines serve multiple functions and have various benefits, including:^{[1]
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- Greater Durability: Dobby borders are usually woven tightly along the edges of towels, providing structural stability, reducing fraying and keeping towels intact longer.
- Shape Retaining: The dobby border helps the towel maintain its tidy and iconic rectangular shape during washing and over the years.
- Decoration: Dobby borders add a touch of flair to bath towels, offering a creative departure from the woven cotton of the rest of the towel.
- Improved Grip: Dobby borders are textured and therefore help create better grip, making it harder for the towel to slip out of your hands while you’re drying yourself off.
- On the flip side, the lines on the end of the towel do not indicate areas you should be using for drying particular parts of your body, such as your face, butt, or hands. But if that’s what you want to use them for, you do you!

Section 2 of 4:

Do towels need a dobby border?

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No, towels don’t need dobby borders, and many don't have them. While a dobby border can be both a stylish and functional addition to a bath towel, towels don’t need to have dobby borders. The main purpose of a towel is to absorb moisture, which can still easily be done without the iconic geometric strip. Dobby borders do help maximize the durability of the towel by helping it retain its shape while minimizing fraying, but other factors do contribute to the longevity of a bath towel. For example, fabric weight and fiber content equally impact a towel’s long-term utility.^{[2]
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- If you like the look of a dobby border, buy a towel with it! If not, don’t. It’s totally up to you.

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How to Properly Care For Dobby Border Towels

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Wash your towels about every 3-4 uses, especially if you have small children, as they are more at risk.^{[3]
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Fabric softener can add a beautiful scent to your clean clothes, from tropical paradise blooms to crisp beachy breezes. However, fabric softener can leave a waxy substance on the towels, reducing the fibers’ absorbency. If you feel like you need to dry yourself vigorously and at length post-shower, your fabric softener’s dulling properties may be to blame.
It’s normal for your dobby border to fray, but there are a few steps you can take to restore its former glory. With small scissors, snip the loose threads carefully without yanking. If you notice the fraying is getting worse, you can use a bit of fabric glue to help seal problem areas. If the towel is too frayed to use on your body, you can repurpose it for pets, cleaning up, or even as mats.^{[4]
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How can you tell if a bath towel is high quality?

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When it comes to bath towels, softness is measured in GSMs, or grams per square meter. Ranging from 300-900 for cotton towels, this number is meant to reflect how plush and heavy a towel is. The higher the number, the softer it will feel on the skin, and therefore, the higher the quality of the towel. Choose softly!^{[5]
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GSM also aligns with absorbency. Higher GSMs will be thicker and more absorbent than lighter towels with lower GSMs. One important note is that the higher the GSM, the tougher the towel will be to clean in the wash due to its thickness. So, when searching for the perfect bath towel, like a self-care Goldilocks, try to find a good balance between lightness and a quality GSM.
Dobby borders aid in the construction of a towel, helping them keep their shape and structure. Well-constructed towels typically have this strip of tight stitching, along with densely woven loops that catch water during the drying process. Additionally, high-quality towels have a weight to them without being overly heavy.^{[6]
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A good bath towel that stands the test of time is one that remains absorbent, retains its shape, and has no evidence of fraying. High-quality towels typically last between 2-5 years, depending on how kindly you treat them. Look for a higher GSM, wash often, and nix the fabric softener. Your towels are sure to thank you!^{[7]
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