The best anti-chafing running undies: Runderwear review and 15% discount
Tired of chafing ruining your runs? It’s time for you to switch to Runderwear. Here’s everything you need to know about the brand that makes the best anti-chafe underwear for runners and a discount code for you!
Runderwear: anti-chafing undies for runners
Runderwear is a specialist performance underwear brand that was founded in the UK in 2013. Born out of frustration with uncomfortable, chafe-inducing underwear on long runs, Runderwear set out to design a range of comfy, chafe-free undies for runners of all abilities.
The founders, Jamie Smalley and Richard Edmonds, were runners themselves and knew just how important comfort and support are when you're clocking up the miles.
The Runderwear range now includes underwear, bras, socks and base layers. Whether you're training for a marathon, out for a casual 5k or hitting the trails, their gear is designed to keep you feeling fresh and chafe-free from start to finish.
Is Runderwear worth the price?
At first glance, £17 for a thong or £22 for a pair of men’s boxers might seem like a lot for underwear – but when you factor in the quality and longevity, Runderwear is absolutely worth the investment.
You can wash them dozens (even hundreds) of times, and they’ll still hold their shape, feel just as soft, and look practically brand new. Unlike cheaper alternatives that stretch out, lose elasticity or start to chafe after a few wears, Runderwear stays reliable over time. It’s not just about comfort on a single run, it’s about having gear you can count on for years.
When you consider how often runners wear and wash their kit, investing in durable, high-performing underwear is a smart choice.
Runderwear discount code
Want to give Runderwear a try and save while you're at it? Use my code CHLOEH15 for 15% off your order!
Why should you try Runderwear running undies?
Here are a few reasons that have made Runderwear a staple brand in the running community:
Chafe-free comfort: Runderwear undies are designed with runners in mind, with seamless construction that reduces the risk of rubbing and irritation.
Moisture-wicking technology: Say goodbye to sweat-soaked undies. Runderwear uses technical fabrics that keep you dry and comfortable, even during tough workouts or long-distance events.
Support and fit: From underwear to sports bras, Runderwear is all about fit. The pieces stay in place, support you where you need it and never dig in or ride up.
Performance tested: Their gear is not only runner-designed, it’s runner-tested. Whether you’re on a morning jog or running your goal race, it won’t let you down.
My honest Runderwear review
Let me just say it: I swear by Runderwear thongs. If you’ve ever struggled with discomfort or chafing mid-run, these will change the game for you.
They're incredibly comfy, completely discreet and the breathable fabric keeps you feeling fresh – even on hot days or long runs. I’ve tested them on everything from tempo sessions to long-distance races, and they’ve never let me down. They’re also super durable: I’ve washed mine dozens of times, they still fit like new and haven’t lost their shape.
The seamless design means that not only are they very comfortable to wear, but they also go undetected under running tights or shorts, with no digging in or awkward lines
That kind of fit gives me real confidence especially on race day, knowing that I won’t be distracted by chafing or discomfort.
Plus, the performance fabric does an amazing job at preventing any skin irritation from sweat or friction, which is why I’m now also wearing Runderwear undies for other activities, from Infrared pilates to Barry’s classes.
Honestly, I can’t recommend them enough! Ready to try Runderwear for yourself? Don’t forget to use code CHLOEH15 for 15% off your order!
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