Runderwear™ reviewProducts, prices, shipping and returns

Runderwear™ makes chafe-free running underwear, socks, bras and base layers, with free UK delivery over £50 and 30-day returns.

Runderwear™ offers ↓

Runderwear™ is a UK-based running clothing brand that makes underwear, socks, bras and base layers designed specifically for runners. It was founded by Jamie Smalley after he suffered bad chafing during the New York Marathon, and the brand’s stated mission is to liberate runners to focus on what they love to do. The range covers men’s and women’s running underwear, anti-blister and compression socks, sports and running bras, running shorts, tops and base layers, and running accessories.

What stands out

  • Runderwear™ guarantees its products are 100% chafe-free.
  • UK delivery is free on orders over £50, with 2-4 business day delivery.
  • Runderwear™ accepts returns and exchanges on unworn products for up to 30 days after delivery.
  • Runderwear™ running bras are designed to reduce breast movement by up to 83%.
  • Runderwear™ offers free exchanges on running bras until the right fit is found.

Runderwear™ offers

  • Free shippingGet deal

    Free UK delivery on orders over £50; tracked option £6.00. No code is needed. From the shipping page of Runderwear™, read on 15 October 2026.

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How Runderwear™ compares

Its terms beside those of the 78 sports and outdoors shops read on this site so far. Every figure is taken from that shop's own pages.

  • 30 days to send things back: longer than 52 of the 69 sports and outdoors shops read here.
ShopReturns windowFree shipping fromPrices seen
Cambria Bike90 days$75$0.95 to $10,299
Portland Gear90 days$150$5 to $500
Strength Shop90 days£100£2.99 to £3,769.99
Built for Athletes™60 days£100£2.99 to £307.50
Coldest60 days$125$1 to $837.40
Dryrobe®60 days£50£5 to £225
Heinnie60 days£50£11.99 to £564.99
Kings Camo60 days$200$10 to $549.99
Nakie60 daysA$60A$17.85 to A$359.90
Runderwear™30 days£50£9 to £100

All 78 sports and outdoors shops

Three more readings of Runderwear™

Each was given the same pages of runderwear.co.uk and asked what the brand does well. None of them has seen or used the products; software then checked every figure they wrote against those pages.

LongCat 2.5 by Meituan

Chafe-free running underwear, guaranteed

Runderwear is a UK brand built around one idea: underwear, socks and bras designed specifically for running. Its founder started it after suffering bad chafing during the New York Marathon, and the site promises products that are 100% chafe-free, guaranteed. The catalogue covers men's and women's running underwear, socks, bras, shorts and base layers, with prices from £9 to £100 and a mid-range of £38.40. It suits runners of all levels, from 5km training to marathons, and offers fit tools such as a bra size calculator and size charts. UK delivery is free over £50, or £6.00 for tracked 1-2 day service. Returns and exchanges are free within 30 days on unworn items, with refunds in 10 working days.

Solar Mini 4 by Upstage

Chafe-free running comfort

Runderwear offers running underwear, socks, and sports bras designed for runners, with a focus on seamless comfort. The brand guarantees 100% chafe-free results and states that its products help thousands of runners run in ultimate comfort. It provides free UK returns and exchanges on unworn items within 30 days of delivery, and free delivery on orders over £55. Shipping to the UK includes tracked options, while international delivery uses DHL or DPD. The range includes men's and women's underwear, running bras, and various sock types, with prices from 9 GBP to 100 GBP.

Laguna S 2.1 by Poolside

Chafe-free running underwear

Runderwear designs running-specific underwear, bras, socks and base layers focused on preventing chafing. The brand offers free UK delivery on orders over £55 and free UK returns within 30 days. Products are made with seamless construction and moisture-wicking materials. It suits runners seeking comfortable, dedicated activewear, particularly those prone to chafing. The range includes men's and women's underwear, sports bras with a size calculator, and various sock styles. International shipping is available via DHL or DPD.

Watch

Runderwear™: 7 products in 22 secondsA reel ZTrun put together from Runderwear™'s own product pictures.

What Runderwear™ sells

Runderwear™ sells running underwear for men and women, including briefs, boxers, hipsters, thongs, boy shorts and anti-chafing shorts, with multibuy packs available. It also sells running socks in anti-blister, compression, cushioned and merino wool styles, as well as sports and running bras in cup sizes A-E and D-H, running shorts, running tops and base layers, and running accessories. The product list shows 97 products across these categories, with items such as Men’s Running Boxer Shorts, Women’s Running Briefs, the Tempo Running Bra, the Women’s Energize Running Bra and Unisex Anti-Blister High Running Socks. The brand also offers sustainable running underwear, marathon essentials and gift ranges for men and women.

Runderwear™ prices

Runderwear™ prices in the store’s public product list run from 9 GBP to 100 GBP, with a middle price of 38.40 GBP. Individual examples from the product list include Women’s Running Briefs in black at 18 GBP, Men’s Running Briefs in black at 20 GBP, Men’s Running Boxer Shorts in black at 22 GBP, Unisex Anti-Blister High Running Socks in white at 17 GBP, and Unisex Compression Running Socks at 30 GBP. Multibuy packs are priced separately, such as Women’s Running Hipster in white (3-Pack) at 43.20 GBP, Men’s Running Long Boxer Shorts in black (3-Pack) at 60 GBP, and Men’s Running Boxer Shorts in black, white and navy (3-Pack) at 52.80 GBP.

Runderwear™ shipping

Runderwear™ ships free on orders over £50 within the UK mainland, with delivery in 2-4 business days. A tracked UK delivery option costs £6.00 and takes 1-2 business days. UK mainland postcodes only are covered for these services; Channel Islands are excluded, and delivery times may be extended for the Scottish Highlands and Islands, the Isle of Man and Northern Ireland. For international orders, Runderwear™ offers DHL International Express or DPD delivery to all major overseas locations, with delivery ranging from 1-5 days depending on destination. Shipping charges and standard shipping days for a destination can be checked in the cart at checkout, and shoppers can switch countries on the site to shop in their local currency.

Runderwear™ returns

Runderwear™ accepts returns and exchanges on unworn products for up to 30 days after delivery when purchased directly from its site. Underwear that has been tried on cannot be returned. Returns are started through the brand’s Returns Portal using the order reference number beginning with #, and a copy of the completed returns form or a note with the order number should be enclosed. Exchanges for a different size are offered free of charge until the right fit is found. Once a return is received at the warehouse, a refund normally arrives within 10 working days. Postage costs for returned items not processed through the portal cannot be refunded.

Discounts and offers at Runderwear™

Runderwear™ offers 10% off a first purchase when a shopper subscribes to its newsletter. The brand also sells multibuy packs of underwear and socks at a combined price, such as a 3-pack of Women’s Running Hipsters in white at 43.20 GBP and a 3-pack of Men’s Running Long Boxer Shorts in black at 60 GBP. UK delivery is free on orders over £50.

Good to know about Runderwear™

Runderwear™ states that its products are 100% chafe-free, guaranteed. The brand is based in Dorset in the UK and describes itself as a small team focused on doing one thing better than anybody else: making seamless running clothing from fine materials. Its running bras are designed by runners and include the Power bra, a high-impact encapsulation style with a fully opening back in cup sizes C-H, and the Energize bra, a compression-style medium-impact bra with a racerback in cup sizes A-D. The brand provides a bra size calculator and a Bra Size Finder on its site, and its running bras are designed to reduce breast movement by up to 83%. The site also offers training zones for 5km, 10km, half marathon and marathon distances, a running pace calculator and a blog.

What was read

These pages of Runderwear™’s own website, on 15 October 2026:

This page sets out what Runderwear™ offers, from what it publishes about itself. No product was bought or tested.

In the words of Runderwear™

FREE - Orders over £50 - 2-4 business days

Runderwear™, Shipping policy

£6.00 - Tracked Delivery - 1-2 business days

Runderwear™, Shipping policy

We're happy to accept returns or exchanges on any unworn products for up to 30 days after delivery when purchased directly from our site.

Runderwear™, Returns policy

Once your return has been received at our warehouse, you should normally expect to receive your refund within 10 working days.

Runderwear™, Returns policy

Short answers

How much does Runderwear™ charge for UK delivery?

Runderwear™ delivers free within the UK on orders over £50, with delivery in 2-4 business days. A tracked UK delivery option costs £6.00 and takes 1-2 business days.

Which countries does Runderwear™ ship to?

Runderwear™ ships internationally to all major overseas locations via DHL International Express or DPD, with delivery ranging from 1-5 days depending on destination. Shipping charges and delivery days for a destination can be checked in the cart at checkout.

How long do I have to return an item to Runderwear™?

Runderwear™ accepts returns and exchanges on unworn products for up to 30 days after delivery when purchased directly from its site. Underwear that has been tried on cannot be returned.

How long does a Runderwear™ refund take?

Runderwear™ normally issues a refund within 10 working days of receiving a return at its warehouse.

Does Runderwear™ offer a discount for signing up?

Runderwear™ offers 10% off a first purchase when a shopper subscribes to its newsletter.

What does Runderwear™ sell?

Runderwear™ sells running underwear for men and women, running socks including anti-blister and compression styles, sports and running bras, running shorts, tops and base layers, and running accessories, with 97 products in its public product list.

See it at Runderwear™

Visit Runderwear™

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