- No products in the shopping bag.
Free UK Returns
Free Delivery On Orders £40+
Chafe-Free Guaranteed
8000+ 5 Star Reviews
50% Off
Women's Merino Running Briefs
£15.00£30.00
Seamless Women's Running Briefs enhanced by the magic of Merino. Designed to offer fuller coverage and sit higher on the waistline. Experience unrivalled comfort and performance.
- Responsibly sourced, sustainable Merino with seamless design
- Naturally regulates temperature in any conditions
- Anti-bacterial, odour-resistant and removes sweat quickly
- Super-fine, ultra-soft and non-itchy against the skin
- As with all Runderwear products: Chafe-free, guaranteed
Seamless & Sustainable
The world’s first seamless Merino running underwear range. The magic of Merino wool with the added bonus of 360° seamless construction provides unrivalled comfort and performance. Our Merino wool is responsibly sourced from non-mulesed sheep that are sheared once a year, offering a sustainable and renewable fibre
.png?v=0&options=w_720)
Temperature Control
Merino wool comes from Merino sheep, who face scorching hot summers and bitterly cold winters in their natural Australian mountain habitat. As a result, their wool has evolved to have unmatched levels of temperature control - so our Merino range will keep you at the perfect temperature in any conditions
.png?v=0&options=w_720)
Odour-Resistant
This intelligent, organic fibre also absorbs both odour-causing bacteria and moisture from your body, quickly. It traps the bacteria to make it odour-resistant and it can absorb up to 35% of its own weight before feeling wet, meaning you stay fresh and dry on your run
.png?v=0&options=w_720)
Super-Fine, Ultra-Soft
Merino wool is 3 times finer than human hair. The fineness and softness of Merino is measured in Microns – and at 18.5 Microns Runderwear Merino is super-fine. That results in an ultra-soft and non-itchy feel against your skin, so it’s the perfect first layer for all of your year-round running adventures
.png?v=0&options=w_720)
Customer Reviews
Based on 59 reviews
83%
(49)
15%
(9)
2%
(1)
0%
(0)
0%
(0)
M
Good fit & comfortable but not as soft as I expected given they contain merino, I prefer the regular fabric which seems softer and the items are less expensive. Not keen on the grey colour, would prefer black or even better, a choice of colours.
Thank you for your feedback, Great to hear that you like the fit of your Merino Briefs and find these to be comfortable! Our Merino range is our premium range as this wool comes from Merino sheep, who face scorching hot summers and bitterly cold winters in their natural Australian mountain habitat. I will pass your feedback onto the product team and this is appreciated! Happy Running,
N
....... doesn't seem to allow a sanitary pad to stick to the material? I haven't read any other reviews with the same comment, but my pad simply would not stick at all, which means I can't wear these knickers for a week each month.
Thank you for your feedback, I am sorry to hear this and will pass your feedback onto the product team. We are pleased to hear that you have found a good fit in your underwear!
P
Very comfortable and good fit. Good for all sports or even just everyday wear.
So far wash and dry well. Maybe a little bit expensive but it is merino. Is there a matching running bra/crop top?
H
I am a big fan of merino wool especially for exercise. I do have other makes of merino pants but not specifically for running. I would have preferred if they came up slightly higher as I am long between waist and crutch and don't like pants that don't come up high enough but that is just me - they are probably high enough for most. I would have preferred a higher merino wool content but generally they are nice and are comfortable. Would be nice if they were available in colours.
V
Very comfortable, no chafing and sit nicely on waist. Prompt delivery. Prefer these merino ones to the other style
Runderwear Women’s Merino Running Briefs are designed to deliver unrivalled comfort and performance. All the features of our classic Women's Running Briefs - seamless design, breathable, moisture-wicking and of course, chafe-free - enhanced by the magic of Merino; the world's best natural performance fibre
HOW DOES IT WORK?
Merino wool comes from Merino sheep, who face scorching hot summers and bitterly cold winters in their natural Australian mountain habitat. As a result, their wool has evolved to have unmatched levels of temperature control - so our Merino range will keep you at the perfect temperature in any conditions
This intelligent, organic fibre also absorbs both odour-causing bacteria and moisture from your body, quickly. It traps the bacteria to make it odour-resistant and it can absorb up to 35% of its own weight before feeling wet, meaning you stay fresh and dry on your run
To prevent overheating the sheep are sheared once a year, so the fibre is sustainable and renewable. The fineness and softness of Merino is measured in Microns – at 18.5 Microns, Runderwear Merino is super-fine – making it ultra-soft and non-itchy against your skin
Fabric Composition:
45% Merino Wool
40% Polyester Thermocool™
10% Polyamide
5% Elastane
Product Care:
- Warm machine wash up to 40°C
- Wash with similar colours
- Do not tumble dry
- Do not soak, bleach or dry clean
Size Guide
| WOMEN’S SIZES | ||||
| SIZE | S | M | L | XL |
| UK | 8-10 | 10-12 | 12-14 | 16-18 |
| USA | 4-6 | 6-8 | 8-10 | 12-14 |
| AUSTRALIA | 8-10 | 10-12 | 12-14 | 16-18 |
| FRANCE | 36-38 | 38-40 | 40-42 | 44-46 |
| ITALY | 40-42 | 42-44 | 44-46 | 48-50 |
| GERMANY | 34-36 | 36-38 | 38-40 | 42-44 |
| JAPAN | 9-11 | 11-13 | 13-15 | 17-19 |
| To Fit | S | M | L | XL | ||||
| cm | inches | cm | inches | cm | inches | cm | inches | |
| WAIST | 70 | 27 | 75 | 29 | 80 | 31 | 85 | 33 |
| HIPS | 95 | 37 | 100 | 39 | 105 | 41 | 110 | 43 |
Runderwear Help and Advice:
If you need any help or advice, you can contact Team Runderwear, we would love to hear from you!
Email: hello@runderwear.com
Phone: +44 (0)800 061 4021
Delivery & Shipping Info:
UK
- FREE tracked delivery (Royal Mail 2nd Class, tracked) on orders over £40
- Royal Mail 1st Class, tracked: £2.95
- DPD Next Working Day*: £5.95
*orders must be placed before 3pm Monday to Thursday to ensure next working day delivery
International - EU
- FREE tracked delivery (Royal Mail International, tracked/signed) on all orders over £40
- Royal Mail International, tracked/signed: £4.95 for orders under £40
International – Rest of World
- FREE tracked delivery (Royal Mail International, tracked/signed) on all orders over £100
- Royal Mail International, tracked/signed: £9.95 for orders under £100
Runderwear Returns:
You can return any Runderwear Crop Tops, Running Bras, Base Layers or headwear to us within 14 days of purchase and can request a full refund or a product exchange.
Due to hygiene reasons we can not accept returns on socks or underwear including Briefs, Hipster, G-Strings, Hot Pants, Long Shorts, Boxer Shorts and Tri Suits, if they have been worn.
In the unlikely event that your product becomes faulty, you may return your purchase for a full refund or exchange.
To request a return, please follow the instructions using this link: https://www.runderwear.co.uk/returns
