The Best And Worst Types Of Underwear To Keep You Healthy Down There
Underwear is often the most overlooked article of clothing, and many of us may never give a second thought to exactly what we wear down there.
However, experts agree that the underwear you choose can have positive or negative effects on the wellness of your genital area. For instance, underwear that makes you sweat more can lead to itching and yeast infections. Certain cuts of underwear, such as thongs, can increase the risk of bacterial vaginosis or other infections. Underwear that’s too tight can cause constriction, chafing and bacterial infections, and there is some evidence that it can affect fertility in men.
When selecting a pair of underwear, it’s important to consider the fabric, fit and cut. And you’ll want to think about when and how often you change or go without underwear.
We spoke with four experts — two OB-GYNs and two urologists — who gave us their best advice for choosing and wearing underwear.
Stick with cotton or other natural fabrics.
When selecting a pair of underwear, the fabric is a major consideration. “Generally speaking, the best fabrics for underwear are natural fabrics like cotton,” said Dr. Andrea Braden, a board-certified OB-GYN in Atlanta. “It really has to do with the breathability of that fabric. We do know that air circulates better with cotton underwear versus polyester. It is important for vulvar health to have good air circulation.”
Other good natural options include hemp, bamboo and linen, said Dr. Suzy Lipinski, a board-certified OB-GYN at Pediatrix Medical Group in Denver.
Urologists agree. Dr. Scott D. Miller, the medical director at Wellstar Urology in Atlanta, said that cotton stands out because “it is comfortable, cool, breathable, moisture-wicking and absorbent.” However, “these characteristics are dependent on the quality of the cotton fiber and various types of weaves,” he noted.
And there are instances where other fabrics might do better. “During times of increased perspiration, cotton can retain too much moisture, leading to bacterial and fungal overgrowth,” Miller added. “In these cases, a better choice may be a fabric made of a combination of cotton and a synthetic fiber.”
Avoid fabrics that don’t let you breathe down there.
Lipinski advised against “non-breathable fabrics,” including synthetics such as nylon and satin. Additionally, “woven, rather than knit, fabrics or thick fabric can also limit how much [the fabric] breathes,” she said.
Miller said pure polyester “is probably the worst fabric for underwear” and explained why.
“Although it is among the lightest materials, it is neither absorbent nor very breathable,” he said. “However, its durability makes it a good addition as a small proportion of [fabric blends].”
If you’re unsure of a particular fabric blend, Braden suggested that feeling the fabric can help you decide. “It should be soft and not slippery.”
Even underwear that isn’t made of a natural, breathable fabric will often “have a cotton panel in the crotch area or gusset,” she added. And that’s a good thing: “That is because cotton is the most ideal fabric to be sitting in your ‘nether regions.’”
Pick a cut that feels comfortable to you.
The doctors generally agreed that when it comes to picking a cut of underwear, there’s no real right or wrong. Rather, it’s about what feels comfortable to you and what allows your body to breathe.
“The key is a comfortable fit that is not constricting or chafing,” Lipinski said. “This means different underwear for different body types. … Ask yourself, does the underwear feel comfortable and move with you or tighten up and constrict? Does the underwear ride up or cause chafing? Even two pairs of underwear in the same cut but [from] different brands can fit differently.”
Dr. Fenwa Milhouse, a board-certified urologist with Down There Urology in Chicago, said that “loose-fitting underwear has long been recommended,” adding that “tight-fitting underwear reduces air circulation and may increase local moisture down there, which can cause skin irritation and cutaneous or skin yeast infections.” Therefore, she encourages her patients to pick cuts that are “most comfortable for them.”
However, there may be reason to believe that certain underwear styles are better for fertility than others. Milhouse noted that a 2018 Harvard study evaluating semen parameters from almost 700 men found that participants who primarily wore boxers had a 25% higher sperm concentration than those who did not.
Still, “briefs have the advantage of better support and protection,” Miller said. “Boxers have the advantage of freedom of movement, although the extra material may cause bunching. Boxer-briefs combine the features of both, although most of these designs are form-fitting in the style of briefs.”
Consider how often you wear thongs.
Breathability doesn’t necessarily mean less fabric, with Lipinski noting how thong underwear tends to be tighter and more constrictive.
“This doesn’t mean that you can’t ever wear it, just maybe minimize use or save for those special occasions,” she said.
Also, consider your medical history.
“If you are prone to infections, then you may want to avoid wearing a type of underwear that is a thong or sits very closely to the rear end,” Braden said, adding that it can increase risk for bacterial vaginosis. “The reason behind that is that you can have bacteria tracked from the rectal area forward when the fabric is lying that close to the rectum. So if you’re going through an infection or prone to infection, it is probably best to wear something like a bikini or brief, or even boy shorts.”
Change your underwear daily, at minimum.
The agreed-upon rule among the doctors interviewed is to change your underwear at least once per day to make sure things remain clean and dry and to decrease the bacteria load.
“Bacteria is normal. We all have normal bacteria that lives on the vulva or in the rectal area,” Braden said. “What you don’t want is growth of bacteria coming from your clothing or your underwear.”
Braden explained how wearing underwear for long periods of time can cause infections or odors because moisture mixes with the normal bacteria that’s down there.
So it’s important to change your underwear as frequently as you can. Some people may even want to consider changing their underwear more than once a day.
“If you are active and sweat a lot or struggle with incontinence, then you may want to change even more frequently,” Lipinski said.
Consider going commando when you sleep.
Although some doctors found no issue with sleeping in underwear when done properly, others felt it may be beneficial to go without.
“In general, I recommend sleeping without underwear,” Milhouse said, adding that it allows your private parts to get air ventilation, decreases moisture and reduces irritation to the skin.
“Even for my incontinent patients, at night I encourage them to sleep without underwear and pads and instead sleep commando on an absorbent towel or sheet,” she said.
Ultimately, the decision is more about personal preference. However, it’s important to pay attention to how your body reacts.
“If you’re having any complaints, such as itchiness issues, in general, the more air the better,” Braden said. “The less trapped everything is against your skin, the better the skin is, the healthier it is. Yes, you can sleep in your underwear, but make sure it is something breathable, and make sure you are changing that daily.”
The best plain women’s underwear to buy in bulk on Amazon, according to reviews
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Amazon
A five-pack of full-coverage high-waist cotton underwear
These wildly popular cotton undies are made with a breathable, soft cotton-spandex blend with just the right amount of stretch to allow for freedom of movement. The packs are available in black, white, grey and multiple color options in sizes S-5XL. They feature a double-layered waistband that sits at the belly button, are sweat-wicking and won't cut into your limbs. They're also a great option for those who are postpartum, recovering from c-sections or other abdominal surgeries.
Promising review: "If you are anything like me you probably have a few products in your cart and you are doing your homework in the review section. This is your sign to ORDER THEM! I found a few brands I was interested in but ultimately came back and ordered these. There was a review that said “it feels like nothing is on.” At first I thought yeah okay.. but seriously it feels like nothing is on. I am blown away at the quality and comfort of these panties and highly recommend them. I’m usually not a repeat buyer because I find something wrong with any kind I get but I will definitely be ordering another pack in different colors! Love love love them! For reference I am 5’ 2” 230lb with an apron belly and love handles and bought an xl. The high waist band does not dig in and sits right above my belly button. They are super forgiving, super stretchy and have a wide crotch area that is perfect for pad use. So glad I spent the little extra $ and bought these." — Amazon Customer
Amazon
A five-pack of bikini briefs with a lace trim
If you want a hint of visual interest but all the functionality and comfort of a plain brief, then look no further than these adorable undies. They have a lower, almost hipster-like rise and are made with a stretchy viscose material that is feather-light, moisture-wicking and designed to keep you cool and comfy. They're available in a few different color combinations in sizes S-XL.
Promising review: "Highly recommend. Very comfortable and soft. They fit perfectly. They are breathable and also don’t leave lines really bad. The colors are fun as well. I would absolutely buy more of these and plan too. Honestly would replace my entire collection at this point. Love them so much." — nihongasuki
Amazon
A six-pack of Amazon Essentials cotton briefs with a high-cut leg
These mid-rise panties offer moderate bum coverage with a high-cut leg for those who love a functional undie but want to show a little bit more flesh. They're made with a soft cotton-spandex blend, an elastic that is both supportive and comfy and a simple design that is sure to become your everyday go-to. They're available in a range of colors in sizes XXS-6X, and in 10-packs as well as six-packs. Find out why they're some of the most highly-reviewed and popular underwear options on Amazon when you snag some for yourself.
Promising review: "I was hesitant when I purchased (good deal) as underwear (since I am older and no longer into bikini or thongs) is either too high (granny panties) or fits just below the post menopausal roll and I keep hiking them up. These are fantastic. A lot of stretch, come right to the navel, and soft. Very happy purchase." — tj
Amazon
A 12-pack of Fruit of the Loom's most popular style
Designed to be fade- and shrink-resistant, this 12-pack of famously soft mid-rise briefs features a cotton-poly blend construction, cotton gusset and woven waistband and leg openings to help prevent panty lines. They're the ideal everyday undies, and are available in sizes 5-13 Plus.
Promising review: "These underwear are comfortable, fit well, and are breathable. They don’t ride up at all. Would definitely buy again." — Hilary Hruby
Amazon
A set of six hipster bikini briefs
If you're looking for a seamless, discreet brief, then these are the undies for you. This six-pack is available in sets of black, beige or with a variety of color options depending on your preference. Get them in sizes S-XL. They're simple and straightforward without feeling frumpy.
Promising review: "These are the BEST full coverage underwear! The best I've found in a long time. Soft fabric, nice and stretchy, breathable, and they do not ride up at all. Seams don't show or dig. The wash really nice, no signs of wear after weekly washing and wearing. Great value, I will purchase again!" — Emilee Reinsberg
Amazon
A 10-pack of sweet solid and printed classic briefs
Available in packs of 10 in sizes 6-10, these soft cotton-blend high-rise, full-coverage briefs are as comfy as they are adorable. They are tag-free so you don't have to deal with any itchy nonsense and are available in packs of just black or white undies as well as a mix of solids and prints.
Promising review: "I love these black cotton briefs. They bring a little bit of sexy back into a very plain undergarment. I like the material and the comfort." — Momncrew6
Amazon
A 12-pack of high-waisted Fruit of the Loom underwear with over 80,000 5-star ratings
Soft, comfy and iconic, these lovely Fruit of the Loom undies are a must for anyone who loves a higher waist line and full coverage. They feature a durable and strong plush waistband, are tag-free and have a 100% cotton gusset for maximum comfort. They're available in packs of 12 and six in various color combinations in sizes 5-14 Plus.
Promising review: "I was leery about purchasing these because I had purchased the Amazon brand, which ripped in the first wash. These panties have really held up and they’re very comfortable. They are true to size and good quality. Most importantly the price is right. Highly recommended." — Kelly2171
Amazon
A colorful six-pack of boyshorts
These Hanes boyshorts are made with a flexible, stretchy and comfortable nylon-blend fabric that is moisture-wicking and tagless, so you stay comfy all day long. They feature a mid-rise and full front and back coverage with a classic boyshort design. The undies are available in a six-pack of assorted colors in sizes S-XXL.
Promising review: "As a mom who had a c section im picky about underwear now. I want some that are soft and dont sit on my scar. these are some of my go to ones because of the comfort and stretch they have. they are also a little higher waisted so they dont bother my scar at all." — Carissa H.
Amazon
A 10-pack of cheeky, low-rise bikini-style underwear
The V-shaped design of these cute undies adds visual interest while remaining true to a classic bikini silhouette. They feature a curved waistband that accentuates curves and comfortable stretchy cotton fabric that is light and breathable. These panties are definitely on the cheeky side, so if you're looking for full coverage these might not be for you. They're available in several color combinations in sizes S-XL.
Promising review: "As a woman who values both comfort and style in her underwear, the FINETOO 10 Pack Womens Cotton Underwear exceeded all expectations. The soft cotton fabric feels incredibly gentle against my skin, providing all-day comfort without sacrificing sexiness. With their low rise, V-waist design, and cheeky cut, these panties offer the perfect combination of support and allure, making me feel confident and fabulous every day. I initially thought they wouldn't stay in place all day but quickly proved me wrong and have become my favorite underwear thus far." — April
Amazon
A five-pack of lace-trimmed cheeky hipsters
Say bye-bye to panty lines with these cheeky hipsters. They provide enough coverage and comfort for everyday use but won't make you feel dowdy. These undies are designed to give a hint of sexiness while the soft fabric and lightweight seamless construction keeps you comfortable. You can get these in packs of five or 10 in a variety of color and pattern combinations in sizes S-4XL.
Promising review: "These are a total win if you're looking for the right amount of coverage but just a little sexiness. The lace detail along the top is nice, and unlike other panties I've ordered on Amazon, the sewn lace seems to be reinforced, so that pilling should be minimized. They are perfectly soft and have some stretch to them with the 5% spandex. They fit mostly true to size, though mine were a bit big, because I was right on the cusp between sizes, or on the low number end. If you are like me, you might be able to get away with the size just below, but to be safe, go for the range you're in. Just know that they'll fit a little loosely, though not so baggy they'll fall down (unless you have pants that are too big!!) I got a beautiful range of colors and am shocked that you can find quality of this kind for $2.40 a panty!! I'm considering ordering another set." — S.A.
Amazon
A five-pack of mid-rise briefs with a lace waistband
Split the difference between sexy lingerie and comfortable everyday undies with these stylish briefs. The stretchy, breathable cotton blend fabric moves with you sans irritation, while the cute lace design can actually help to prevent a pinching waistline. These undies are available in three color combinations in sizes S-XXL.
Promising review: "These underwear (I’m a large) fit well without squeezing or moving around when I wear them. They remain smooth on the under cheek and you can’t see lines in the jeans. The top band is a lovely lace, and although lace tends be unstructured, it never rolled with wear. It stayed structurally sound. I highly recommend and I personally would purchase again." — Destiny
Amazon
A five-pack of Calvin Klein logo bikini briefs
Everyone looks great in a pair of Calvins, and these hugely popular bikini briefs are a testament to the brand's long-standing credibility in the undergarment sphere. Soft, comfortable and lightweight, they're the ideal everyday undies. The signature Calvin Klein waistband detail gives you just the right amount of '90s chic while the dreamy fabric, cut and silhouette will make you feel fabulous. You can get a five-pack in a range of assorted colors in sizes XS-XL.
Promising review: "I have these in so many colors and styles . I love the comfort of these panties . I love that they do well in the wash and they don't shrink . The size is always right . The price is good for what you get." — Nicole
Amazon
A four-pack of comfy cotton boxer briefs
If you prefer full-coverage underwear that can also prevent thigh chafing, or like to sleep in boxer briefs, try this four-pack of Hanes boxer briefs that come down to mid-thigh. They're made of a cotton blend and are moisture-wicking and tag free. They come in two different color combinations in sizes S-XXL.
Promising review: "I am happy with this purchase. They fit and wash well. I'm not sure how the more expensive brands are but I cannot see spending the money on them when this company is tryed and true. I sleep and exercise in these. So far they have not shrunk, they cover all parts that should be covered, the elasticity has not changed through wash and dry. They are made with a thin material which I favor as once in a while I wear them under scrubs. The versatility is plenty." — N. Ross
