Men's Merino Running Boxers – Runderwear South Africa
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Men's Merino Running Boxers


The Runderwear Men's Merino Running Boxers are designed to stop chafing while you run. Chafe-free, guaranteed. Merino wool is a premium fabric that provides excellent temperature control and unbeatable comfort. Constructed using seamless technology, these Boxers help you stay warm on those cold winter runs.


  • S
  • M
  • L
  • XL
  • XXL

Colour: Grey

  • Grey

The Men’s Merino Running Boxers are designed to deliver a premium comfort experience for runners. The natural properties of the merino provide exceptional moisture-wicking, breathability and anti-odour qualities which all combine to keep you comfortable and chafe-free, guaranteed.


Key Features

  • 6-inch inseam, elasticated waistband
  • Chafe-free, guaranteed
  • Excellent breathability from fabric and micro-perforations
  • Naturally odor resistant with efficient moisture-wicking
  • Improved core temperature control in all climates
  • Premium, finer wool fibres feel soft against the skin preventing irritation
  • Silicone leg-grippers hold them in place during movement


The Men’s Merino Running Boxers are constructed with a blend of high-grade, technical fabrics including 45% merino wool. Merino wool is a popular, premium fabric which offers excellent natural properties that help combat the elements while you run. It is naturally odour resistant, quick-drying and has excellent moisture-wicking qualities to keep you dry. The enhanced breathability of the fabric combined with carefully positioned micro-perforations to provide excellent core temperature control, making them perfect for winter running but equally excellent for running in warm conditions. The 6-inch inseam offers protection on the thighs and the silicone leg grippers hold the boxers in place during movement.

Size Guide
CMs 76-81 81-86 86-91 81-96 96-101
INCHES 30-32 32-34 34-36 36-38 38-40
Fabric Composition and Product Care

Fabric Composition:

45% Merino Wool
40% Polyester Thermocool™
10% Polyamide
5% Elastane

Product Care: 

  • Machine wash up to 40°
  • Wash with similar colours
  • Do not tumble dry
  • Do not soak, bleach or dry clean

Customer Reviews

Based on 7 reviews
Brilliant service and product

Absolutely gob smacked with how quickly these arrived. Worn twice and so far no issues. Furthest
distance so far 11 miles. Well impressed

Running comfort at its best

To date I have only worn once, washed once and the results so far are good. Warm, comfortable and fresh.

Great pants

Have been looking for the perfect pair of merino hiking pants and I believe I have found them. These are lightweight, fast wicking and they don;t bunch up in the most sensitive of regions!

Highly recommended.

Great, but at a price

Even though these underpants are outrageously expensive.. they are the best i have tried so far. After buying and trying the polyester boxers, I liked them so much, that when they were available in merino.. I simply just had to get them.

Great boxers

I’ve only had these a couple of week but they are already my go to boxers for running, they are extremely soft and comfortable and do not ride up during my runs. Normal runderwear is great, these are exceptional.

Rundercare Help and Advice:

If you need any help or advice, you can contact our Rundercare team, they would love to hear from you!

Phone: +277 6411 0066 

Runderwear Delivery:

Orders under R600 cost R60 for Delivery. All orders over R600 have FREE delivery!

Runderwear Returns:

You can return any Runderwear socks, crop tops, support bras, baselayers 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 underwear including briefs, hipsters, g-strings, hot pants, 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.

Please package your return appropriately and add in a note to let us know whether you require a refund or product exchange. Please pay the postage in full and send to our Rundercare team at the following address:

Runderwear Returns
449 Galaxy Ave,
Linbro Office Park,

Please email our Rundercare team at if you require any further help.