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Replace more than 100 single-use sanitary products with just one pair of these eco-friendly period pants
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We considered look, feel and cost of these period pants, as well as how they washed, dried and fitted into our life
While, once upon a time, the term “period pants” might have meant your ugliest – but most comfortable – pair of knickers to throw on during your period, it now means something a little more advanced. In recent years, the number of menstrual-care brands launching or adding period-proof underwear to their line-up has grown.
According to Tamara Sender, senior consumer analyst at Mintel: “Period pants are no longer a niche product, with one in five British women buying a pair in 2022.” Sender also shared: “Period pants tap into rising awareness of the impact fashion is having on the environment, as well as financial concerns, making them increasingly relevant in the current climate.”
A single pair of period underwear can replace 100 or more disposable pads or tampons, according to the Women’s Environmental Network. Plus, as of 1 January 2024, the UK government removed VAT from period pants, giving them the same VAT-free status as other period products on the market. But, what women and others who menstruate choose to use during their period is completely individual, and it’s understandable that period pants might not work for everyone.
However, we urge you to give them a try if you’re curious, and even more so if you’re dubious. Before we tried our first pair of period pants, we were, too, and now they’re the first thing we reach for when those tell-tale period cramps come calling.
Like traditional knickers, there’s a variety of options out there, from high-waisted and bikini to boxer-style shorts and even thongs. As everyone’s flow is different, we’d advise experimenting, if you can, with different absorbencies, as well as trying them out for different activities (overnight, going out, during exercise).
Plus, there’s no shame in mixing it up with other menstrual products – some prefer wearing period pants throughout the whole time they’re bleeding, whilst others will opt for them when at home and then use a menstrual cup or tampon at other times.
In terms of the upkeep, you should be rinsing them out under cold water after use before popping them in the washing machine along with other laundry. Two things to remember, though: firstly, don’t use fabric conditioner, as this can adversely affect the materials and absorbent layers, and, secondly, zip them up in a mesh bag if you have one to hand – just for added protection. Then simply air dry.
We evaluated how these undies performed while we were on our flow, from lighter to heavier days and overnight. We also considered look, feel, cost and how they washed, dried and fitted into our life. So, whether you’re a seasoned period pants user or looking to add a pair to your underwear drawer, here’s our round-up of the best period pants on the market.
We considered look, feel and cost, as well as how they washed, dried and fitted into our life
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We’ve said it before and we’ll say it again: Wuka’s range of period pants look fab, feel great and we’re big fans. While there are some excellent options in its offering, its seamless midi brief is the real standout piece. Silky smooth, they hug your body without digging in, and offer the security you’re after in a period product.
What’s really great is they are seamless and don’t show under clothing – even under tight-fitting options such as skinny jeans or a satin slip skirt. The pants, which are made from recycled nylon generated from old plastic bottles, come in three flow absorbencies: light (one tampon’s worth), medium (two to three tampons’ worth) or heavy (up to four tampons’ worth).
Founder Ruby Raut, an environmental scientist who grew up in Nepal, is also hugely passionate about eradicating menstrual shame, period poverty and looking after the planet. As well as partnering with charities such as Surfers Against Sewage, Days for Girls and the Hygiene Bank, Wuka and Ruby campaigned to end the 20 per cent VAT charge on period underwear (which was scrapped on 1 January 2024).
Read the full Wuka midi brief review
One of the cheapest reusable period pant brands on the market, Love Luna has a simple but effective range of products.
Instead of using disposable menstrual products that will outlive your great-grandchildren (an ordinary sanitary towel or tampon could take 300 to 500 years to decompose), Love Luna urges those with periods to embrace the reusable options it has on offer. As well as bikini, midi and full brief options, the brand has a breathable bamboo and cotton mix brief. The bikini knickers are a great basic option to have in your undies drawer.
There are also four layers of protection, a soft microfibre finish and these hold the equivalent of two to three regular tampons. At £10, they’re a great budget buy.
Read the full Love Luna period bikini knickers review
If you think heavy flow days require unflattering baggy knickers, take a gander at these from Flux. The popular high waist heavy flow option holds up to four tampons’ worth and ticks a lot of boxes in terms of comfort, style and support. We love the high-waisted design with the mesh side panels, which give a nice bit of va-va-voom to the knickers. We’re also big fans of the super-soft micro-modal fabric on the inside, and how fresh these kept us, even on our heaviest days.
Flux is also dedicated to being as sustainable and ethical as possible: it uses Oeko-tex certified materials in its pants, recycled cardboard in its packaging, is vegan-friendly and doesn’t test on animals. It also gives back to someone in need with every purchase and has donated to some great charities, including Mermaids, the Independent Domestic Abuse Services and Freedom 4 Girls.
US brand Thinx is a big player in the reusable period underwear market. The brand’s products include a line with more accessible pricing and period-proof activewear. As such, there is an awful lot to choose from when it comes to Thinx’s collections.
We were impressed with the comfort and ease of its hip hugger lace and stretch-organic cotton period briefs, though. With a gusset made of 95 per cent Oeko-tex certified organic cotton (plus elastane in the body fabric for stretch), they make for a pair of really comfortable, smooth-feeling period pants that are moisture-wicking and absorbent, holding up to three tampons’ worth. The high waist and elasticated mesh waistband mean they stay nicely in place, too, without digging in or rolling.
Read the full Thinx hiphugger review
These high-waist bikini period pants by Aussie brand Modibodi have been raved about by thousands of the brand’s fans. They’re loved for their absorbency, dry feel, and for delivering on the promise of no leaks. Their heavy, overnight absorbency means they can hold the equivalent of up to four tampons’ worth, while the comfortable feel of the 95 per cent bamboo viscose material means they’re just the ticket for a restful sleep.
We liked how, even after wearing overnight and on heavy flow days, we were left feeling dry, thanks to the breathable Modifier Technology and merino wool in the lining, which fights bacteria, smells and stains. We also like that Modibodi has an extensive and inclusive range of products, from a maxi 24-hour option, which is great for shift workers, to detachable bikini pants that are highly useful for those who struggle to change regular underwear.
Read the full Modibodi’s period activewear review
Sometimes, you just need a big old pair of pants when you’re on your period and ones that’ll sit comfortably over your bloat. Step into a UK brand dedicated to helping tackle period poverty: Hey Girls.
The brand’s super-soft red cherry period pants were like a gentle hug across our swollen belly. They’re a high-rise design, so we preferred to wear them at home either for bed or in our loungewear, as they peeked out of our jeans (yes, even the high-waisted ones), but these are the pair we’d reach for on those days where the cramps and water retention are getting you down. They also have a high absorbency and can hold up to five tampons’ worth. Plus, they’re a joyful cherry red colour, in what is often a sea of black, navy and grey period pants. We also liked that they were pretty quick to air dry once washed.
Founded by a mother and her two daughters, Hey Girls is a business with a charitable mission, too: for every product sold, it gives one away to girls and women in the UK from low-income families.
Founded in Brazil, this period underwear brand is known for its sexy styles. Founders Emily Ewell and Maria Eduarda Camarg were inspired to start the business in a bid to combine innovation and sustainability to improve the quality of life for women. It also takes its environmental objectives seriously (it’s a certified B Corp company), with each pair of pants coming packaged in a small cardboard box that has a detailed breakdown of the product’s carbon footprint on it. The brand also claims to be the world’s first clinically tested period underwear.
Its entire range of period underwear is worth checking out, especially if you like your underwear on the skimpier and lightweight side. We’re big fans of the bikini style, which is a bestseller and comes in pink and red options. Silky and sexy, they’re a gorgeous addition to the lingerie drawer.
We tried the blush pink shade and were impressed by how much the pants felt like a regular pair, being ultra-slim. Given this, we preferred wearing them on lighter flow days and found them perfect for when we were coming to the end of our period.
While everyone’s flow is different, and these pants won’t be everyone’s cup of tea, the short answer is: yes, period pants do work. Although you may feel dubious about undies that claim to work just as well as your usual products, this is what they’re designed for.
Thicker than normal knickers, they prevent leaks just as well as liners, tampons, pads or a cup. That said, just as these other products aren’t always fail-safe, neither are period pants – so, if you have a particularly heavy flow, you may want to double up with a cup or tampon.
Although this will depend on the brand you go for, how heavy your flow is and where you are in your cycle, you’ll be pleased to know that you can actually wear the same pair of undies all day. But again, this will be down to personal preference.
Generally, though, they will need to be changed once they start to feel wet, as dry-feeling pants mean the blood is being held in the material rather than sitting on top.
Period pants are made from an absorbent material with multiple layers designed to keep moisture and menstrual blood away from your skin. Fibres trap the liquid to try and keep any stains or leaks at bay, while maintaining your comfort.
If you are hesitant to fully trust a pair, as a beginner, try them out on a lighter flow day or use them as backup protection, to see how you feel.
Yes, they are perfectly hygienic and safe on the skin. Most brands use naturally anti-bacterial fabrics and fibres in the material of their period underwear, and, unlike a disposable pad, the fluid is fully absorbed rather than sitting on the surface.
Just as a normal pair of knickers, period pants are also washable and made without harmful toxins and chemicals.
The high-leg cut of most pairs of period pants does mean you could comfortably wear the absorbent underwear under swimwear on a very light flow day, but they are not designed for the water.
Instead, try period swimwear, which is designed to be worn in the water, absorb your flow and give you the freedom to swim on your period without pads or tampons.
We love our Wuka seamless midi briefs and highly recommend them for their silky soft feel, absorbency and how they eradicate any fears of VPL.
Hey Girls’s mission to help those in need is also worth highlighting and its cherry red pants are a comfort on days when you’re feeling really bloated. It’s also worth commending Love Luna for making a budget-friendly pair of period pants to make reusable menstrual products more accessible.
For more kind-to-planet period products, try our best reusable sanitary pads
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