The Purpose of the Small Pocket in Women’s Underwear

If you’ve ever noticed the small pocket or extra piece of fabric sewn into the crotch of women’s underwear, you’re not alone—and no, it’s not a design mistake or a hidden storage space. That little “pocket” actually serves an important purpose related to comfort, hygiene, and health.

What Is It Really Called?

The small pocket is known as a gusset. It’s a diamond- or triangle-shaped piece of fabric stitched into the crotch area of women’s underwear.

And while it may look like a pocket, it’s not meant to hold anything.

The Main Purpose: Hygiene and Health

1. Improved Breathability

The gusset is usually made from cotton or another breathable fabric, even when the rest of the underwear is made from lace, satin, or synthetic materials.

Why it matters:
Breathable fabric helps reduce moisture buildup, lowering the risk of irritation, odor, and infections.

2. Better Absorption

The gusset absorbs natural moisture and discharge, keeping you more comfortable throughout the day.

Why it matters:
This helps maintain a healthier environment and prevents chafing or discomfort.

3. Extra Protection and Comfort

The additional layer of fabric adds softness and reduces friction in a sensitive area.

Why it matters:
It protects the skin from seams, rough stitching, and tight materials.

A Practical Manufacturing Benefit

Interestingly, the gusset also makes underwear easier and more cost-effective to manufacture. The opening you see is often left partially unstitched to allow the garment to be sewn efficiently, then closed neatly.

So the “pocket” appearance is simply a result of smart construction—not a hidden feature.

Why Cotton Gussets Are Recommended

Health professionals often recommend underwear with 100% cotton gussets, even if the rest of the garment is synthetic.

Benefits include:

• Reduced risk of yeast infections
• Less irritation for sensitive skin
• Better airflow

Is This Feature Only in Women’s Underwear?

No—men’s underwear also includes gussets, though they’re shaped differently to accommodate anatomy and support. In women’s underwear, the gusset’s role is more focused on breathability and moisture control.

Final Thoughts

That small “pocket” in women’s underwear isn’t a mystery after all. It’s a thoughtful design detail that prioritizes health, comfort, and practicality—quietly doing its job without much attention.

Sometimes, the smallest features make the biggest difference.