When it comes to vaginal health, many of us may not realize how much our choice in underwear can affect our comfort, hygiene, and overall well-being. It's not just about style; making simple adjustments — like selecting the right fabrics and fit — can have a real impact on supporting a balanced, healthy environment "down there." Now take a closer look at the best underwear options for maintaining optimal vaginal health, and why these choices matter. 

woman organizing her underwear drawer

The vagina’s delicate balance

Imagine the vagina as its own unique ecosystem, where “good” bacteria work to keep everything balanced and healthy. Certain underwear choices can throw this balance off, trapping moisture and heat, which can lead to irritation or infections (hello, BV and UTIs!). By paying attention to fabric, fit, and style, we can support vaginal health and avoid these uncomfortable issues. So, before you grab just any pair, here are a few important things to keep in mind:

Cotton is queen

When it comes to fabrics, cotton is the clear winner. It’s natural, breathable, and great at wicking away moisture — all things that help keep the vaginal area cool and dry. This breathability is key for promoting a healthy pH balance and making sure unwanted bacteria or yeast don’t get a chance to thrive.

Cotton is especially helpful if you’re prone to things like irritation or infections. While those silky, synthetic fabrics might feel luxurious, they don’t offer the same health benefits as good ol’ cotton. So, for everyday wear, think cotton first — it’s comfortable, reliable, and your body will thank you for it. 

Rescripted's Pick: Women's Cotton Bikini Brief Underwear (Amazon Essentials, $15.20)

The downside of synthetics

Synthetic materials like nylon, polyester, and spandex are popular for their stretchiness and sleek look, but they’re not the best for your vaginal health. These fabrics tend to trap heat and moisture, which can create the perfect environment for bacteria to grow.

If you like synthetic underwear for a specific outfit or occasion, don’t worry — you don’t have to ditch it completely! Just consider saving these for short periods or special occasions, and go for cotton or other breathable options the rest of the time.

woman wearing nude underwear

Getting the right fit

Finding the right fit is just as important as choosing the right fabric. Underwear that’s too tight can lead to chafing and irritation, and it doesn’t allow for good airflow. On the other hand, super-loose undies might not give you the support or coverage you need.

The best fit is one that feels comfortable, doesn’t dig in, and stays in place without riding up. This helps with airflow, which in turn helps prevent sweat and bacteria from building up. Plus, remember that our bodies change over time, so check in on your underwear size now and then to make sure it’s still the right one for you. 

Thongs: Friend or foe?

Thongs are a bit of a debate topic for vaginal health. While they’re great for keeping panty lines at bay, thongs can sometimes increase the risk of infections. Because of their design, they can transfer bacteria from back to front, leading to urinary tract infections or other issues.

If you’re a thong fan, try ones made from cotton, and consider wearing them only for special outfits or occasions. For everyday wear, fuller-coverage styles are usually safer and more comfortable in the long run.

Rescripted's Pick: Women's Cotton Thong Underwear, Pack of 6 (Amazon Essentials, $12.30)

woman pulling cotton underwear out of the dryer

Going commando: Is it a good idea?

Believe it or not, sometimes the best underwear choice is no underwear at all. Going commando, especially while sleeping, lets your body breathe and prevents moisture from building up. Airflow helps keep things balanced, which can reduce the chances of infections.

If you’re not comfortable going totally commando, consider wearing loose cotton underwear to bed to get a similar effect. Skipping the tight clothes, at least at night, can give your body a much-needed break.

Taking care of your underwear

Even if you’ve got the best, most comfortable underwear, proper care is still key. Wash your underwear in hot water to kill bacteria, and try to avoid harsh detergents or fabric softeners that can irritate sensitive skin. Changing your underwear daily and after exercise is also important for good hygiene.

If you’re someone who experiences frequent infections, consider keeping a separate laundry basket just for underwear and washing them on their own. A little extra care can make a big difference in keeping things clean and irritation-free.

Listen to your body

Choosing the right underwear is a simple way to keep on top of your vaginal health; but at the end of the day, every body is different. What works for someone else might not work for you, and vice versa. Pay attention to how your body responds to different types of underwear and make adjustments as necessary. If you’re still dealing with recurring infections or discomfort, it may be worth chatting with a healthcare provider who can offer personalized advice based on your needs. After all, when it comes to our most sensitive areas, health and comfort are more important than keeping up with trends — so prioritize breathable fabrics for daily wear and save the fancy stuff for special occasions. Your vagina will appreciate it!


Kristyn Hodgdon is the Co-Founder and Chief Creative Officer at Rescripted.

Be the expert in you.

Subscribe