Nobody wants nagging knickers migrating mid-run to all the wrong places; uncomfortable running underwear is enough to make you turn around and ditch a session, sharpish. Selecting the right pants to leave you chafe and pain-free is key to ensuring your runs are as comfortable as possible – particularly in the case of running bras, which we explore in a separate buyer’s guide.
Do I need specific running underwear?
Underwear that has been designed for running is always going to be a better choice than your everyday cotton undies – and they don’t have to cost a huge amount more, either. Finding the right style for you might require a bit of trial and error (full briefs might be perfect for some, while others might stay chafe-free in a thong), but the key is a good, technical material.
How is running underwear different to normal pants?
Your M&S knickers will usually be made of a soft fabric life cotton – ideal for keeping you comfortable for your usual daily life, but not very convenient for running in. Cotton blends are often absorbent and risk soaking up your sweat and causing chafing issues or even bacterial growth. A good pair of running underwear, on the other hand, will be made of a technical fabric that’s designed to wick away sweat and will usually have minimal seams to prevent rubbing.
The best running pants for women
Runderwear Women’s Running Briefs
What our tester said:
“These are the best running pants ever. I love that they’re high-waisted, offering a bit more coverage and sitting really comfortably at my belly button rather than cutting in at the hips. I’ve run some really long distances in these pants and have never had any chafing in them. They’ve also lasted incredibly well in the wash over the years, which helps justify that slightly higher price point. I really like how light and breathable they feel, too. All round, a cracking pair of underwear.”
Step One SmoothFit Thong
What our tester said:
“These are my favourite pants to run in during the summer months. They offer a bit less coverage than other running pants, but I love how light and breathable that makes them feel. I don’t think these have been designed for runnings specifically, but that doesn’t hold them back – they have all the ingredients for a perfect pair of pants, including a soft bamboo fabric blend, minimal seams and quick-drying feel. Not only did I wear them for my first marathon, but I also packed a spare pair to change into afterwards as they’re so comfy. They’re also excellent value, coming in at just £5 a pair if you take advantage of the multipack offer.”
Universal Performance Seamless Bamboo Thong
What our tester said:
“Originally, I was eyeing these pants up for my yoga sessions; I wanted something flexible and soft with a high waist, and they fit the bill perfectly. I was surprised that they offered more support than I’d thought they might, and started wearing them for my runs – and I’m so glad I did! They wick sweat brilliantly and are super comfortable, even after long miles. They’re extremely high waisted, which is worth bearing in mind if you don’t already wear high-waisted leggings as they’re sometimes visible over the top.”
BAM Seamless High-Waist Brief
What our tester said:
“Hello blissful comfort and long-lasting freshness, from the sweatiest runs to flowing through hot yoga! Seriously, these bamboo briefs have been a game changer. They’re so beautifully soft with the perfect amount of stretch, with generous bum coverage for the ultimate comfort levels. Honestly, they felt like a second skin.”
Period running underwear
Some runners prefer to wear period pants for running on their period as opposed to, or as well as, sanitary products for extra comfort and security. Others might opt for period underwear even without menstruating, as they’re designed to offer protection against any leaks. However you prefer to run, they’re worth a browse…
NIXI Body Coni knickers
What our tester said:
“These knickers are so soft, and the fit is extremely flattering and very comfortable, with the added bonus of there not being a VPL. Having had a baby my pelvic floor could do with some work, so they coped really well with the odd leak of urine, being super absorbant and very discrete (is that too much info?!). I like the fact that they are black, as it doesn’t show discolouration – but they would obviously be visible under light clothing. I think it’s a great option for people of all ages, but especially those who may not want/be able to use tampons or pads. I also love how many sizes they come in. A big thumbs up from me.”
WUKA Ultimate™ Midi Brief
What our tester said:
“These Wuka pants really are a revelation. Gone is the worry of leaking through knickers and leggings on a long run. These leak-proof and breathable pants really do offer the comfort, protection and peace of mind they claim to do, not only on your period but also if you suffer from incontinence or any other bladder or bowel issue. They are extremely absorbent and leave you feeling dry front and back without the sensation that you’re wearing a nappy. The material is super soft and stretchy, which provides comfort throughout your run. They are also true to size and a great fit. So there’s no need to worry about any other sanitary protection when going about your day, exercising or not. After they’ve been worn they just get rinsed out in warm water and added to your usual 40°C wash. Genius!
Step One Period Full Briefs
What our tester said:
“Step One underwear never fails me, so no surprises that I love these period pants. Their signature softness from the bamboo fabric is still there, this time with an absorbent core that gives you peace of mind on your period. I tried both the heavy and moderate flow options, and was so impressed that the heavy-flow briefs feature absorbent material all the way up to the waistband at the back, so you can trust them even at nighttime. I do wish the seams where the absorbent core is sewn in were a little softer, but aside from that they’re a hit in this household. And with so many styles to choose from, you’re bound to find your perfect match. Make the most of the multipack deal and get them for as little as £11 a pair – bargain!”
