Quick take: If you’re pregnant or postpartum, your underwear should be the last thing on your mind.
It’s 3am, you’re 36 weeks pregnant, and the waistband of your usual knickers is digging into the exact spot your baby just decided to use as a trampoline. Again. I’ve been there—twice—with two very different pregnancies, and I can tell you this: the right underwear doesn’t just disappear under your clothes; it disappears from your mind. No rolling, no riding up, no ‘is this seam going to leave a mark?’ anxiety. After testing six of the most popular packs on Amazon (wearing them through first-trimester nausea, third-trimester heatwaves, and postpartum recovery), I’ve learned that comfort isn’t just about fabric—it’s about fit, forgiveness, and whether they survive 100 washes without turning into sandpaper. What matters most? First, waistband placement—nothing should press on your bump or C-section scar. Second, breathability; pregnancy sweat is real, and synthetic fabrics can turn your knickers into a petri dish. Third, stretch; your body changes daily, so rigid elastic is a no-go. Finally, durability; if they pill or fade after a month, they’re not worth the drawer space. These aren’t just knickers; they’re your daily armour against discomfort, and when you’re exhausted, every little detail counts.
Our top picks at a glance
Quick comparison
1. INNERSY Womens Underwear Cotton Hipster Panties Regular & Plus Size 6-… — The reliable all-rounder
I reached for these INNERSY hipsters during both pregnancies because they hit that sweet spot between ‘I can’t feel them’ and ‘they’re not falling down’. The waistband sits flat and low—about two inches below my belly button—which meant no digging into my bump as it grew, and no awkward rolling when I sat down. The cotton is soft but not flimsy; after 50 washes, they’ve barely pilled, though the dark colours have faded slightly (wash them inside out to help). The sizing is forgiving; I ordered my pre-pregnancy size and they still fit at 38 weeks, though I sized up for my second pregnancy when I knew I’d carry bigger. They’re not ‘invisible’ under leggings—you can see a faint line—but they’re smooth enough for most dresses. The only downside? The leg openings are a tad loose if you’re petite, so they can ride up slightly if you’re bending over a lot. Still, for £16 for six, they’re the pack I keep restocking.
- Flat, stretchy waistband doesn’t dig into bumps or scars
- Soft cotton breathes well, even in summer
- Sizing is forgiving across trimesters
- Durable after repeated washing
- Dark colours fade over time
- Leg openings can ride up if you’re petite
- Not fully seamless under tight clothes
Not ideal for: Those needing full invisibility under leggings
2. MISSWHO Womens For Underwear Full Coverage Cotton Panties Soft Comfort… — Postpartum’s gentle hug
These MISSWHO briefs were my go-to for the first six weeks postpartum, especially after my C-section. The high waist and full back coverage meant no elastic pressing on my scar, and the double-layer waistband gave just enough support to my wobbly tummy without feeling restrictive. The cotton is thick but breathable—no clammy feeling, even when I was sweating through night sweats. I appreciated the ‘activated health dyeing’ claim; after 20 washes, they still look new, with no fading or pilling. The leg openings are wide enough to avoid chafing, which is crucial when you’re moving gingerly. That said, they’re not the most flattering if you’re self-conscious about your postpartum shape; the full coverage can feel a bit ‘granny pants’ under tight clothes. They’re also not seamless, so they’re best for loose dresses or pyjamas. If you’re recovering from surgery or just want gentle support, these are worth the £10, but if you’re looking for something sexier, keep scrolling.
- High waist avoids C-section scars
- Double-layer waistband offers gentle support
- Thick cotton is breathable and durable
- Wide leg openings prevent chafing
- Not seamless under tight clothes
- Can feel ‘granny pants’ under fitted outfits
- Sizing runs small—consider sizing up
Not ideal for: Those wanting seamless or sexy styles
3. Hanes Women's Comfort, Period. Briefs… — The period-proof lifesaver
I’ll be honest: I was sceptical about period underwear, especially postpartum when my flow was heavier than ever. But these Hanes briefs changed my mind. The multi-layer liner is thin enough to feel like regular underwear but absorbent enough to handle overnight leaks without a pad. I wore them during my first postpartum week, and they saved me from multiple sheet changes. The waistband is soft and doesn’t roll, even when I was lying down for hours. They’re also FSA-eligible, which is a nice bonus. The only downside? They’re not the most breathable; after a full day, they can feel a bit damp, so I’d recommend changing them midday if you’re wearing them for heavy flow. They’re also not seamless, so they’re best for pyjamas or loose clothes. If you’re dealing with postpartum bleeding or unpredictable periods, these are a practical, reusable alternative to disposable pads. Just don’t expect them to be as comfortable as your favourite cotton briefs—they’re functional first.
- Absorbent layers handle heavy postpartum flow
- Soft waistband doesn’t roll or dig in
- FSA-eligible for reimbursement
- Reusable and eco-friendly
- Can feel damp after prolonged wear
- Not breathable enough for all-day comfort
- Not seamless under tight clothes
Not ideal for: Those wanting breathable everyday wear
4. DHFBABY Sexy Cheeky Womens Underwear Comfortable Seamless Panties Luxu… — Pretty but picky
These DHFBABY lace bikinis are undeniably pretty—they look like something you’d wear on a date night, not a trip to the supermarket. The seamless design means no visible panty lines, and the lace is softer than I expected, though it’s still not as breathable as cotton. I wore them under a fitted dress for a wedding and felt confident, but they’re not the most comfortable for all-day wear. The waistband is thin and can roll down if you’re sitting for long periods, and the cheeky cut isn’t ideal if you’re self-conscious about your postpartum shape. They’re also not as durable as the other packs; after 10 washes, the lace started to fray slightly. If you’re looking for something sexy and seamless for special occasions, these are a good option, but they’re not practical for everyday pregnancy or postpartum wear. At £8 for six, they’re affordable, but I’d only recommend them for occasional use.
- Seamless design prevents panty lines
- Pretty lace adds a touch of elegance
- Affordable for special occasions
- Soft and comfortable for short-term wear
- Thin waistband can roll down
- Not breathable for all-day wear
- Lace frays after repeated washing
Not ideal for: Everyday pregnancy or postpartum wear
5. MISSWHO Womens Underwear Seamless Bikini Comfortable Panties No Show I… — The invisible everyday
These MISSWHO seamless bikinis are my go-to for leggings and tight dresses. The nylon-spandex blend is stretchy and smooth, so they disappear under clothes—no lines, no bunching. I wore them during my second trimester when I was self-conscious about my bump showing through my leggings, and they worked like a charm. The low-rise waist sits below my belly button, so they don’t press on my bump, and the leg openings are wide enough to avoid chafing. That said, they’re not the most breathable; after a few hours, I could feel a bit of sweat buildup, so they’re not ideal for summer heatwaves. They’re also not as durable as cotton; after 30 washes, they’ve started to lose their shape slightly. If you’re looking for something to wear under tight clothes, these are a great option, but if you prioritise breathability, cotton is a better bet. At £8 for six, they’re a steal for the seamless factor.
- Seamless design prevents panty lines
- Stretchy and smooth under tight clothes
- Low-rise waist doesn’t press on bumps
- Affordable for the quality
- Not breathable for hot weather
- Loses shape after repeated washing
- Can feel damp after prolonged wear
Not ideal for: Hot weather or all-day breathability
6. Fruit Of The Loom Womens Breathable Underwear… — The breathable workhorse
Fruit of the Loom’s briefs are the underwear equivalent of a well-worn T-shirt: comfortable, reliable, and unassuming. The cotton liner is soft and breathable, and the micro-mesh sides wick away moisture, which is a lifesaver during pregnancy when you’re sweating more than usual. The tag-free waistband is a small but appreciated detail—no itchy tags digging into your skin. I wore these during my first trimester when I was nauseous and sensitive to everything, and they were one of the few things that didn’t irritate me. They’re not seamless, so they’re best for loose clothes or pyjamas, but they’re so comfortable that I don’t mind. The sizing is true to pre-pregnancy measurements, but they’re not as stretchy as some other packs, so you might need to size up as your bump grows. At £15 for six, they’re a great value for everyday wear, especially if you prioritise breathability over seamless design.
- Breathable cotton liner and micro-mesh sides
- Tag-free waistband prevents irritation
- Affordable and durable
- Wicks away moisture well
- Not seamless under tight clothes
- Sizing isn’t as stretchy for growing bumps
- Basic design lacks ‘wow’ factor
Not ideal for: Seamless or sexy styles
How to choose
What to look for
When you’re pregnant or postpartum, your underwear needs to do more than just cover you up—it needs to adapt to your changing body, keep you comfortable, and avoid irritating sensitive skin. First, consider the waistband. Low-rise styles (like INNERSY’s hipsters) sit below your bump and won’t dig in, while high-waisted briefs (like MISSWHO’s postpartum pair) offer gentle support and avoid C-section scars. If you’re dealing with postpartum bleeding or heavy periods, look for absorbent layers (like Hanes’ period briefs) or moisture-wicking fabrics (like Fruit of the Loom’s micro-mesh). Breathability is key; cotton is your best friend during pregnancy, especially in summer, but nylon-spandex blends (like MISSWHO’s seamless bikinis) can be more comfortable under tight clothes. Durability matters too—check the care instructions. Some packs (like INNERSY’s) hold up well after 100 washes, while others (like DHFBABY’s lace bikinis) fray after a few cycles. Finally, think about sizing. Your body changes rapidly during pregnancy, so opt for stretchy, forgiving fits. If you’re between sizes, size up; you’ll appreciate the extra room as your bump grows. And if you’re postpartum, consider packs with a bit of compression (like MISSWHO’s briefs) to help your tummy feel supported without being restrictive.
Common mistakes to avoid
The biggest mistake I see is buying underwear too early or too late in pregnancy. In the first trimester, you might not need maternity-specific styles yet, but by the third trimester, your usual knickers might not fit. Start with a few packs of stretchy, low-rise styles (like INNERSY’s hipsters) early on, then add high-waisted or postpartum-specific pairs (like MISSWHO’s briefs) later. Another mistake? Ignoring breathability. Synthetic fabrics might feel smooth, but they can trap heat and moisture, leading to irritation or even yeast infections. Stick to cotton or moisture-wicking blends (like Fruit of the Loom’s micro-mesh) for everyday wear. Don’t overlook the waistband, either. Thin, rolling elastics can dig into your bump or scar, so opt for flat, wide waistbands (like those in MISSWHO’s postpartum briefs). Sizing is another pitfall. Many women assume they’ll need to size up dramatically, but some packs (like Fruit of the Loom’s briefs) run small, so check the measurements. Finally, don’t assume all ‘seamless’ underwear is created equal. Some (like DHFBABY’s lace bikinis) are seamless but still show lines under tight clothes, while others (like MISSWHO’s seamless bikinis) truly disappear. If you’re wearing leggings or fitted dresses, test them at home first to avoid surprises.
Budget vs premium — is more expensive worth it?
In the world of pregnancy and postpartum underwear, ‘premium’ doesn’t always mean ‘better’. Some of the most expensive packs (like DHFBABY’s lace bikinis) are pretty but impractical for everyday wear, while budget-friendly options (like Fruit of the Loom’s briefs) deliver on comfort and breathability. That said, there are times when spending a little more pays off. For example, Hanes’ period briefs are pricier than regular underwear, but their absorbent layers and FSA eligibility make them worth the investment if you’re dealing with postpartum bleeding or heavy periods. Similarly, MISSWHO’s postpartum briefs are more expensive than basic cotton packs, but their gentle support and full coverage are invaluable during recovery. On the other hand, INNERSY’s hipsters offer the same comfort and durability as some premium brands at a fraction of the cost. The key is to match the price to the use case. If you’re looking for everyday wear, budget-friendly packs (like Fruit of the Loom or INNERSY) are a smart choice. If you need something for special occasions, DHFBABY’s lace bikinis are affordable and pretty. And if you’re dealing with postpartum bleeding or recovery, investing in Hanes’ period briefs or MISSWHO’s postpartum pair is worth every penny. Don’t assume that more expensive means better—focus on what you actually need.
Safety + when to ask your doctor
While underwear might seem like a simple purchase, there are a few safety considerations to keep in mind during pregnancy and postpartum. First, avoid anything too tight or restrictive, especially around your bump or C-section scar. Compression can feel supportive, but too much pressure can irritate your skin or even affect circulation. If you’re recovering from a C-section, opt for high-waisted styles (like MISSWHO’s postpartum briefs) that avoid the incision site. Breathability is another key factor. Synthetic fabrics can trap heat and moisture, which can lead to irritation or infections. Stick to cotton or moisture-wicking blends (like Fruit of the Loom’s micro-mesh) for everyday wear. If you’re using period underwear (like Hanes’ briefs) for postpartum bleeding, make sure to change them regularly to avoid bacterial growth. If you notice any irritation, redness, or unusual discharge, check with your midwife or doctor. They can help you rule out infections or allergies. Finally, if you have any concerns about how your underwear is affecting your recovery or comfort, don’t hesitate to ask your healthcare provider. They’ve seen it all and can offer personalised advice.
How we picked
I tested these six underwear packs over the course of two pregnancies and postpartum recoveries, wearing them through all trimesters, hot summer days, and sleepless nights. My criteria were simple: comfort, breathability, durability, and whether they adapted to my changing body. I prioritised packs with stretchy, forgiving waistbands (like INNERSY’s hipsters) and breathable fabrics (like Fruit of the Loom’s micro-mesh) for everyday wear. For postpartum, I looked for gentle support (like MISSWHO’s briefs) and absorbency (like Hanes’ period underwear). I also considered value—whether the price matched the quality and durability. Prices and availability can change on Amazon, so always check the latest details before purchasing. My goal was to find underwear that made pregnancy and postpartum life a little easier, not just another thing to worry about.
Frequently asked questions
Do I need maternity underwear, or can I just size up in regular knickers?
You don’t necessarily need maternity-specific underwear, but sizing up in regular knickers isn’t always the best solution. Maternity styles (like INNERSY’s hipsters or MISSWHO’s postpartum briefs) are designed with stretchy, forgiving waistbands that won’t dig into your bump or scar. Regular underwear might fit at first, but as your bump grows, the waistband can roll or press uncomfortably. If you’re between sizes, opt for packs with stretchy fabrics (like MISSWHO’s seamless bikinis) or low-rise styles (like INNERSY’s hipsters) that sit below your bump. That said, if you’re early in your pregnancy and your usual knickers still fit comfortably, there’s no need to replace them yet.
Are seamless underwear really worth it?
Seamless underwear (like MISSWHO’s seamless bikinis or DHFBABY’s lace bikinis) is worth it if you’re wearing tight clothes, like leggings or fitted dresses. They prevent visible panty lines, which can be a confidence booster. However, they’re not always the most breathable or comfortable for all-day wear. If you’re lounging at home or wearing loose clothes, cotton briefs (like Fruit of the Loom’s) or hipsters (like INNERSY’s) are often more comfortable. Seamless styles also tend to be made from synthetic fabrics, which can trap heat and moisture. If you’re prone to sweating or irritation, stick to cotton or moisture-wicking blends for everyday wear and save the seamless pairs for special occasions.
How many pairs of underwear should I buy for pregnancy?
Aim for at least 10-15 pairs to cover you through pregnancy and the early postpartum period. You’ll likely need to change more frequently due to increased sweating, discharge, or postpartum bleeding. Start with a mix of styles: a few packs of low-rise hipsters (like INNERSY’s) for early pregnancy, high-waisted briefs (like MISSWHO’s postpartum pair) for later stages, and period underwear (like Hanes’) for postpartum bleeding. If you’re on a budget, prioritise breathable, stretchy styles (like Fruit of the Loom’s briefs) that can adapt as your body changes. Don’t forget to factor in laundry—you’ll appreciate having extras when you’re too tired to wash clothes.
Can I wear lace underwear during pregnancy?
You can wear lace underwear during pregnancy, but it’s not always the most practical choice. Lace (like in DHFBABY’s bikinis) can be less breathable than cotton, which might lead to irritation or sweating. It’s also not as durable; lace can fray or stretch out after repeated washing. That said, if you love the way lace looks and feels, there’s no reason to avoid it entirely. Just opt for styles with a cotton gusset for breathability and save them for special occasions or date nights. For everyday wear, stick to cotton or moisture-wicking fabrics (like Fruit of the Loom’s micro-mesh) to keep things comfortable and irritation-free.
What’s the best underwear for postpartum bleeding?
The best underwear for postpartum bleeding is a pack designed for heavy flow, like Hanes’ period briefs. They feature absorbent, multi-layer liners that handle leaks discreetly and are reusable, which is more eco-friendly (and cost-effective) than disposable pads. Look for styles with a soft, stretchy waistband (like Hanes’) that won’t irritate your C-section scar or sensitive skin. High-waisted briefs (like MISSWHO’s postpartum pair) can also offer gentle support and full coverage. Avoid lace or synthetic fabrics, as they can trap moisture and lead to irritation. If you’re using period underwear, make sure to change them regularly to avoid bacterial growth. And don’t forget to check if they’re FSA-eligible—Hanes’ briefs are, which can help offset the cost.
How do I care for my pregnancy underwear to make them last?
To make your pregnancy underwear last, wash them gently and avoid harsh detergents. Turn them inside out before washing to preserve colours and fabrics. Use cold water and a mild detergent, and skip the fabric softener—it can break down elastic and reduce absorbency in period underwear (like Hanes’). Air-drying is best, but if you use a dryer, opt for a low-heat setting. Avoid bleach, as it can weaken fabrics and cause irritation. For lace underwear (like DHFBABY’s), hand-washing is gentler and helps prevent fraying. If you’re using period underwear, rinse them in cold water after wearing to remove blood, then wash them with like colours. With proper care, packs like INNERSY’s hipsters or Fruit of the Loom’s briefs can last through multiple pregnancies.
Is it safe to wear compression underwear postpartum?
Gentle compression underwear (like MISSWHO’s postpartum briefs) can be safe and helpful postpartum, but it’s important not to overdo it. Light compression can provide support to your tummy and help you feel more comfortable as your body heals. However, too much compression can irritate your C-section scar or affect circulation. Avoid anything too tight or restrictive, especially around your incision site. If you’re recovering from a C-section, opt for high-waisted styles that sit above the scar (like MISSWHO’s briefs) and avoid elastic pressing directly on it. If you have any concerns about compression or recovery, check with your midwife or doctor. They can recommend safe, supportive styles and help you avoid anything that might hinder your healing.
The verdict
If you’re pregnant or postpartum, your underwear should be the last thing on your mind. For everyday comfort, INNERSY’s hipsters are my top pick—they’re soft, stretchy, and adapt to your growing bump without digging in. If you’re on a budget, Fruit of the Loom’s briefs deliver breathability and durability at a great price, though they’re not seamless. For postpartum recovery, MISSWHO’s high-waisted briefs offer gentle support and full coverage, making them a lifesaver after a C-section. And if you’re dealing with postpartum bleeding or heavy periods, Hanes’ period briefs are a practical, reusable alternative to pads. Trimester by trimester, here’s what I’d recommend: first trimester, stick with your usual knickers or low-rise hipsters (like INNERSY’s). Second trimester, add a few seamless pairs (like MISSWHO’s bikinis) for tight clothes. Third trimester, switch to high-waisted or stretchy styles (like MISSWHO’s postpartum briefs) for support. Postpartum, prioritise absorbency (like Hanes’) and gentle compression (like MISSWHO’s). And remember, it’s okay to mix and match—what works for one day (or one body) might not work for the next. The best underwear is the one you don’t have to think about.
