Women's Merino Underwear Pack Builder

Regular price £57
Regular price Sale price £57
3.9
Rated 3.9 out of 5 stars
30 Reviews
Save £5
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Women's Merino Underwear Pack Builder

Regular price £57
Regular price Sale price £57
3.9
Rated 3.9 out of 5 stars
30 Reviews
Save £5

The most comfortable travel underwear for any journey. Made from lightweight, superfine Merino wool, it’s breathable, ultra-stretchy, and luxuriously soft against your skin. With our Pack Builder, the more you pack, the more you save.

Learn More
Underwear 1
Select a style:
Color Black
Size
Underwear 2
Select a style:
Color Black
Size
Underwear 3
Total £58. You are saving £4.

Free delivery on all UK orders

The most comfortable travel underwear for any journey. Made from lightweight, superfine Merino wool, it’s breathable, ultra-stretchy, and luxuriously soft against your skin. With our Pack Builder, the more you pack, the more you save.

Learn More
Only 4 payments of £14.25 with
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What's included

Bikini Thong

Women's Merino Bikini

  • 60% Merino Wool, 34% Nylon, 6% Spandex
  • 290 gsm
  • Seamless Knit Fabric for all day comfort.
  • Lightweight
  • Fast drying
Sand

Women's Merino Thong

  • 60% Merino Wool, 34% Nylon, 6% Spandex
  • 290 gsm
  • Seamless Knit Fabric for all day comfort.
  • Lightweight
  • Fast drying
Black

MORE BUNDLE OPTIONS

Men's 3 Pack // T-Shirts Men's 3 Pack // T-Shirts Men's 3 Pack // T-Shirts Men's 3 Pack // T-Shirts Men's 3 Pack // T-Shirts Men's 3 Pack // T-Shirts Men's 3 Pack // T-Shirts

3 Pack // T‑Shirts

Regular price £185
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Bundle and save. Choose 3 T-shirts in a variety of colors and styles.

Regular price £185
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4.8
Rated 4.8 out of 5 stars
6,144 Reviews
Men's 5 Pack // T-Shirts Men's 5 Pack // T-Shirts Men's 5 Pack // T-Shirts Men's 5 Pack // T-Shirts Men's 5 Pack // T-Shirts

5 Pack // T‑Shirts

Regular price £302
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Bundle and save. Choose 5 T-shirts in a variety of colors and styles.

Regular price £302
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4.8
Rated 4.8 out of 5 stars
6,144 Reviews
Men's Hoodie + T-Shirt Bundle Men's Hoodie + T-Shirt Bundle Men's Hoodie + T-Shirt Bundle Men's Hoodie + T-Shirt Bundle Men's Hoodie + T-Shirt Bundle Men's Hoodie + T-Shirt Bundle Men's Hoodie + T-Shirt Bundle Men's Hoodie + T-Shirt Bundle Men's Hoodie + T-Shirt Bundle Men's Hoodie + T-Shirt Bundle

Hoodie + T‑Shirt Bundle

Regular price £181
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Choose 1 Hoodie and 1 T-shirt. Available in a variety of colors.

Regular price £181
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4.8
Rated 4.8 out of 5 stars
7,966 Reviews
Men's Travel Trousers + T-Shirt Bundle Men's Travel Trousers + T-Shirt Bundle Men's Travel Trousers + T-Shirt Bundle Men's Travel Trousers + T-Shirt Bundle Men's Travel Trousers + T-Shirt Bundle Men's Travel Trousers + T-Shirt Bundle Men's Travel Trousers + T-Shirt Bundle Men's Travel Trousers + T-Shirt Bundle Men's Travel Trousers + T-Shirt Bundle Men's Travel Trousers + T-Shirt Bundle

Travel Trousers + T‑Shirt Bundle

Regular price £223
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Choose 1 Travel Trousers and 1 T-shirt. Available in a variety of colors.

Regular price £223
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4.8
Rated 4.8 out of 5 stars
7,003 Reviews
Men's 2 Pack // Travel Shorts Men's 2 Pack // Travel Shorts Men's 2 Pack // Travel Shorts Men's 2 Pack // Travel Shorts Men's 2 Pack // Travel Shorts Men's 2 Pack // Travel Shorts

2 Pack // Travel Shorts

Regular price £212
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Choose any 2 pairs of Shorts from 4 color options.

Regular price £212
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4.7
Rated 4.7 out of 5 stars
228 Reviews
Men's 2 Pack // Merino Travel Trousers Men's 2 Pack // Merino Travel Trousers Men's 2 Pack // Merino Travel Trousers Men's 2 Pack // Merino Travel Trousers Men's 2 Pack // Merino Travel Trousers Men's 2 Pack // Merino Travel Trousers Men's 2 Pack // Merino Travel Trousers Men's 2 Pack // Merino Travel Trousers Men's 2 Pack // Merino Travel Trousers Men's 2 Pack // Merino Travel Trousers

2 Pack // Merino Travel Trousers

Regular price £325
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Choose any 2 pairs of Travel Trousers. Available in a variety of colors.

Regular price £325
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4.6
Rated 4.6 out of 5 stars
1,238 Reviews
Men's 2 Pack // Compact Travel Hoodie Men's 2 Pack // Compact Travel Hoodie Men's 2 Pack // Compact Travel Hoodie Men's 2 Pack // Compact Travel Hoodie Men's 2 Pack // Compact Travel Hoodie Men's 2 Pack // Compact Travel Hoodie

2 Pack // Compact Travel Hoodie

Regular price £253
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Choose any 2 Travel Hoodies from 8 color options.

Regular price £253
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4.8
Rated 4.8 out of 5 stars
2,197 Reviews
Men's 1 Pack Bundle Men's 1 Pack Bundle Men's 1 Pack Bundle Men's 1 Pack Bundle Men's 1 Pack Bundle Men's 1 Pack Bundle

1 Pack Bundle

Regular price £102
Regular price Sale price £102
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Choose 1 T-shirt, 1 pair of underwear and 1 pair of socks. Available in a variety of colors.

Regular price £102
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4.8
Rated 4.8 out of 5 stars
28 Reviews
Men's 2 Pack Bundle Men's 2 Pack Bundle Men's 2 Pack Bundle Men's 2 Pack Bundle Men's 2 Pack Bundle Men's 2 Pack Bundle

2 Pack Bundle

Regular price £204
Regular price Sale price £204
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Choose 2 T-shirts, 2 pairs of underwear and 2 pairs of socks. Available in a variety of colors.

Regular price £204
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4.8
Rated 4.8 out of 5 stars
36 Reviews
Men's 3 Pack Bundle Men's 3 Pack Bundle Men's 3 Pack Bundle Men's 3 Pack Bundle Men's 3 Pack Bundle Men's 3 Pack Bundle Men's 3 Pack Bundle Men's 3 Pack Bundle

3 Pack Bundle

Regular price £291
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Choose 3 T-shirts, 3 pairs of underwear and 3 pairs of socks. Available in a variety of colors.

Regular price £291
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4.8
Rated 4.8 out of 5 stars
24 Reviews
Men's 2 Pack // Button-Up Men's 2 Pack // Button-Up Men's 2 Pack // Button-Up Men's 2 Pack // Button-Up Men's 2 Pack // Button-Up Men's 2 Pack // Button-Up Men's 2 Pack // Button-Up Men's 2 Pack // Button-Up

2 Pack // Button‑Up

Regular price £240
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Choose any 2 Button-Ups from 6 color options.

Regular price £240
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4.7
Rated 4.7 out of 5 stars
181 Reviews
Men's 2 Pack //  Long Sleeves Men's 2 Pack //  Long Sleeves Men's 2 Pack //  Long Sleeves Men's 2 Pack //  Long Sleeves Men's 2 Pack //  Long Sleeves Men's 2 Pack //  Long Sleeves Men's 2 Pack //  Long Sleeves

2 Pack // Long Sleeves

Regular price £151
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Choose any 2 Long Sleeves from 8 color options.

Regular price £151
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4.9
Rated 4.9 out of 5 stars
2,000 Reviews
Unbound Merino - 2 Pack Merino Polo Unbound Merino - 2 Pack Merino Polo Unbound Merino - 2 Pack Merino Polo Unbound Merino - 2 Pack Merino Polo Unbound Merino - 2 Pack Merino Polo Unbound Merino - 2 Pack Merino Polo

2 Pack // Polos

Regular price £166
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Choose any 2 Polos from 8 color options.

Regular price £166
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4.7
Rated 4.7 out of 5 stars
1,011 Reviews
Men's 2 Pack // Boxer Briefs Men's 2 Pack // Boxer Briefs Men's 2 Pack // Boxer Briefs Men's 2 Pack // Boxer Briefs Men's 2 Pack // Boxer Briefs Men's 2 Pack // Boxer Briefs

2 Pack // Boxer Briefs

Regular price £65
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Choose any 2 pairs of underwear from 10 color options.

Regular price £65
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4.7
Rated 4.7 out of 5 stars
1,223 Reviews
Men's 2 Pack // Ankle Socks Men's 2 Pack // Ankle Socks Men's 2 Pack // Ankle Socks Men's 2 Pack // Ankle Socks

2 Pack // Ankle Socks

Regular price £26
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Choose any 2 pairs of Socks from 2 color options.

Regular price £26
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4.8
Rated 4.8 out of 5 stars
944 Reviews
Men's 3 Pack // Merino All Season Ankle Socks Men's 3 Pack // Merino All Season Ankle Socks Men's 3 Pack // Merino All Season Ankle Socks Men's 3 Pack // Merino All Season Ankle Socks

3 Pack // Merino All Season Ankle Socks

Regular price £37
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Choose any 3 pairs of Socks from 2 color options.

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4.8
Rated 4.8 out of 5 stars
944 Reviews
Men's 5 Pack // Merino All Season Ankle Socks Men's 5 Pack // Merino All Season Ankle Socks Men's 5 Pack // Merino All Season Ankle Socks Men's 5 Pack // Merino All Season Ankle Socks

5 Pack // Merino All Season Ankle Socks

Regular price £57
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Choose any 5 pairs of Socks from 2 color options.

Regular price £57
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4.8
Rated 4.8 out of 5 stars
944 Reviews
Men's 10 Pack // Merino All Season Ankle Socks Men's 10 Pack // Merino All Season Ankle Socks Men's 10 Pack // Merino All Season Ankle Socks Men's 10 Pack // Merino All Season Ankle Socks

10 Pack // Merino All Season Ankle Socks

Regular price £110
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Choose any 10 pairs of Socks from 2 color options.

Regular price £110
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4.8
Rated 4.8 out of 5 stars
944 Reviews
Men's 2 Pack // All Season Crew Socks Men's 2 Pack // All Season Crew Socks Men's 2 Pack // All Season Crew Socks Men's 2 Pack // All Season Crew Socks Men's 2 Pack // All Season Crew Socks

2 Pack // All Season Crew Socks

Regular price £26
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Choose any 2 pairs of Socks from 2 color options.

Regular price £26
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4.8
Rated 4.8 out of 5 stars
922 Reviews
Men's 3 Pack // Merino All Season Crew Socks Men's 3 Pack // Merino All Season Crew Socks Men's 3 Pack // Merino All Season Crew Socks Men's 3 Pack // Merino All Season Crew Socks Men's 3 Pack // Merino All Season Crew Socks

3 Pack // Merino All Season Crew Socks

Regular price £37
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Choose any 3 pairs of Socks from 2 color options.

Regular price £37
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4.8
Rated 4.8 out of 5 stars
922 Reviews
Men's 5 Pack // Merino All Season Crew Socks Men's 5 Pack // Merino All Season Crew Socks Men's 5 Pack // Merino All Season Crew Socks Men's 5 Pack // Merino All Season Crew Socks Men's 5 Pack // Merino All Season Crew Socks

5 Pack // Merino All Season Crew Socks

Regular price £57
Regular price Sale price £57
Save £-57
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Choose any 5 pairs of Socks from 2 color options.

Regular price £57
Regular price Sale price £57
Save £-57
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Save £23
4.8
Rated 4.8 out of 5 stars
922 Reviews
Men's 10 Pack // Merino All Season Crew Socks Men's 10 Pack // Merino All Season Crew Socks Men's 10 Pack // Merino All Season Crew Socks Men's 10 Pack // Merino All Season Crew Socks Men's 10 Pack // Merino All Season Crew Socks

10 Pack // Merino All Season Crew Socks

Regular price £110
Regular price Sale price £110
Save £-110
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Save £50

Choose any 10 pairs of Socks from 2 color options.

Regular price £110
Regular price Sale price £110
Save £-110
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4.8
Rated 4.8 out of 5 stars
922 Reviews

What People Are Saying

3.9
Rated 3.9 out of 5 stars
Based on 30 reviews
Slide 1 selected
Total 5 star reviews: 13 Total 4 star reviews: 7 Total 3 star reviews: 5 Total 2 star reviews: 4 Total 1 star reviews: 1
How did you find the fit?Rated -0.9 on a scale of minus 2 to 2
30 reviews
  • SS
    Sylvia S.
    Verified Buyer
    Reviewing
    Women's Merino Bikini Black / L
    I recommend this product
    Rated 5 out of 5 stars
    8/11/25
    Perfect for hiking!

    I reluctantly ordered one pair to see if they irritated my sensitive skin. Wore them on a hike with high temp and humidity. Love that they breathe! Very comfortable and they didn't irritate my skin. Ordered 3 more pairs for upcoming Camino hike. I also ordered the bra and love it. Good support. Hoping to order another bra before my trip. Unfortunately my size is currently out of stock.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
  • MC
    Michael C.
    Verified Buyer
    Reviewing
    Women's Merino Thong Black / L
    I recommend this product
    Rated 5 out of 5 stars
    8/11/25
    Excellent quality

    Superior comfort and style hope the make them in purple someday. Thanks very much

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2
  • VR
    Vanessa R.
    Verified Buyer
    Reviewing
    Women's Merino Thong Black / M
    I recommend this product
    Rated 4 out of 5 stars
    8/7/25
    Thong

    Material is a bit thick and the mediums ate a bit tight. Hope they stretch out a bit. I was trying for a more seamless look

    How did you find the fit?Rated -1.0 on a scale of minus 2 to 2
  • JL
    Julia L.
    Verified Buyer
    Reviewing
    Women's Merino Bikini Sand / L
    I recommend this product
    Rated 4 out of 5 stars
    7/31/25
    Needed new undies - these work

    In need of new undies, I would try unbound merino’s bikinis. Having worn them twice now I like them very much in terms of overall comfort and fit. I’ve given four not five stars because they are a little tighter around my skinny legs than I prefer, and therefore, I suspect show under my slacks.

    How did you find the fit?Rated -1.0 on a scale of minus 2 to 2
  • LW
    Leslie W.
    Verified Buyer
    Reviewing
    Women's Merino Bikini Sand / M
    I recommend this product
    Rated 4 out of 5 stars
    7/31/25
    Good quality

    I like the material. It’s a good thickness. Good coverage in back. I’m a mom and would prefer a higher waist in front.

    How did you find the fit?Rated 0.0 on a scale of minus 2 to 2