CloudPress Pro compression tights
CloudPress ProKnee Length CloudPress Pro¾ Length CloudPress ProFull Length
Deep States limited edition boxer briefs
Boxer Brief - 6" inseamDeep States Boxer Brief All day comfortDeep States Bikini Brief
Michael Clarke has some regrets
Shop No RegretsView Boxer Brief Shop the rangeView Crew Socks
Creole Conjurings boxer briefs and bikini briefs
Shop the rangeView Boxer Brief Shop the rangeView Bikini Brief Boys Trunks & Girls ShortieShop Kids Range
The Elements boxer briefs
6" in-seam boxer briefsView the Elements Shop the rangeEarth, Wind, Fire & Water
NiteKnit sleepwear
Shirt & ShortsSleepwear Set NiteKnitSleepwear Shirt NiteKnitSleepwear Shorts
Aquamarine SmoothFit matching set
SmoothFit Matching SetAquamarine Bra SmoothFit Matching SetAquamarine Thong
Step One bamboo viscose socks
Super SoftCrew Socks Bamboo ViscoseAnkle Socks

Bamboo Viscose Underwear

Soft, breathable bamboo viscose underwear, socks and sleepwear for men, women and kids.

  • Free shipping
  • 30-day First Pair Guarantee

Men's best sellers

Boxer Brief, Trunk, Fly and more

Shop all men's

  • Men's best sellers

    Boxer Brief, Trunk, Fly and more

    Shop all men's
  • Quick add
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    Boxer Brief

    Black

    Suits thicker legs

    $33

  • Quick add
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    Trunk

    Black

    Suits thinner legs

    $33

  • Quick add
    more colours

    Boxer Brief Fly

    Black & Grey

    Easy access front fly

    $33

  • Quick add

    Boxer Brief Sport

    Nightriders

    Longer for activity

    $33

  • Quick add

    Brief

    Black

    $30

  • Quick add

    Cloud Mesh

    Black

    Extra cooling power

    $40

  • Quick add

    Sleepwear Set

    Midnight Black

    $119

  • Quick add

    CloudPress Pro

    Knee-Length, 3/4-Length, Full-Length

    $65

  • Quick add

    The Essentials

    Boxer Brief 4 Pack

    $132

  • Quick add

    The Full Week

    Boxer Brief 7 Pack

    $231

Size

Colour

1
View full details

Everyday

Boxer Brief, Fly, Brief and Trunk

Shop all men's

  • Everyday

    Boxer Brief, Fly, Brief and Trunk

    Shop all men's
  • Quick add
    more colours

    Boxer Brief

    Black

    Suits thicker legs

    $33

  • Quick add
    more colours

    Boxer Brief Fly

    Black & Grey

    Easy access front fly

    $33

  • Quick add

    Brief

    Black

    $30

  • Quick add
    more colours

    Trunk

    Black

    Suits thinner legs

    $33

  • Quick add

    The Essentials

    Boxer Brief 4 Pack

    $132

  • Quick add

    The Full Week

    Boxer Brief 7 Pack

    $231

Size

Colour

1
View full details

Athletic

Sport, Cloud Mesh, compression and cricket

  • Athletic

    Sport, Cloud Mesh, compression and cricket

  • Quick add

    CloudPress Pro

    Knee-Length, 3/4-Length, Full-Length

    $65

  • Quick add

    Boxer Brief Sport

    Nightriders

    Longer for activity

    $33

  • Quick add

    Cloud Mesh

    Black

    Extra cooling power

    $40

  • Quick add

    X-Cup Cricket Underwear

    $89

Size

Colour

1
View full details

Sleepwear

NiteKnit set, shirt and shorts

Shop NiteKnit

  • Sleepwear

    NiteKnit set, shirt and shorts

    Shop NiteKnit
  • Quick add

    Sleepwear Set

    Midnight Black

    $119

  • Quick add

    Sleepwear Shirt

    Midnight Black

    $55

  • Quick add

    Sleepwear Shorts

    Midnight Black

    $65

Size

Colour

1
View full details

Women's best sellers

SmoothFit, Body Shorts and Bikini Briefs

Shop all women's

  • Women's best sellers

    SmoothFit, Body Shorts and Bikini Briefs

    Shop all women's
  • Quick add
    more colours

    Body Shorts

    Tap Shoe

    Lounging

    $25

  • Quick add
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    SmoothFit Thong

    Espresso-Tini

    Less coverage

    $25

  • Quick add
    more colours

    SmoothFit Bikini Brief

    Espresso-Tini

    Classic cut

    $25

  • Quick add
    more colours

    SmoothFit Full Brief

    Espresso-Tini

    Full coverage

    $29

  • Quick add
    more colours

    SmoothFit Padded Bra

    Espresso-Tini

    Lift and support

    $39

  • Quick add

    Classic Bikini Brief

    Classic cuts and prints

    $25

  • Quick add
    more colours

    SmoothFit Boyleg

    Espresso-tini

    High waisted

    $29

Size

Colour

1
View full details

Everyday

SmoothFit bikini, full brief, thong and bra

Shop SmoothFit

  • Everyday

    SmoothFit bikini, full brief, thong and bra

    Shop SmoothFit
  • Quick add
    more colours

    SmoothFit Thong

    Espresso-Tini

    Less coverage

    $25

  • Quick add
    more colours

    SmoothFit Bikini Brief

    Espresso-Tini

    Classic cut

    $25

  • Quick add
    more colours

    SmoothFit Full Brief

    Espresso-Tini

    Full coverage

    $29

  • Quick add
    more colours

    SmoothFit Padded Bra

    Espresso-Tini

    Lift and support

    $39

Size

Colour

1
View full details

Active & Shapewear

Body Shorts, Boyleg and Classic Bikini Brief

Shop Body Shorts

  • Active & Shapewear

    Body Shorts, Boyleg and Classic Bikini Brief

    Shop Body Shorts
  • Quick add
    more colours

    Body Shorts

    Tap Shoe

    Lounging

    $25

  • Quick add

    Classic Bikini Brief

    Classic cuts and prints

    $25

  • Quick add
    more colours

    SmoothFit Boyleg

    Espresso-tini

    High waisted

    $29

Size

Colour

1
View full details

Period Underwear

Full brief, bikini brief and thong

Shop period underwear

  • Period Underwear

    Full brief, bikini brief and thong

    Shop period underwear
  • Quick add

    Period Full Brief

    Black

    $39

  • Quick add

    Period Bikini Brief

    Black

    $33

  • Quick add

    Period Thong

    Black

    $33

Size

Colour

1
View full details

Boys

Junior Trunk

Shop all kids

  • Boys

    Junior Trunk

    Shop all kids
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    Best Sellers

    Black & Grey

    $13

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    Core Colours

    Black & Grey

    $13

  • Quick add

    Limited Edition

    Crocz

    $13

  • Quick add

    NBL Teams

    NBL Sydney Kings

    $13

Size

Colour

1
View full details

Girls

Girls Shortie

Shop all kids

  • Girls

    Girls Shortie

    Shop all kids
  • Quick add

    Girls Shortie

    Tap Shoe

    $13

Size

Colour

1
View full details

Socks

Crew, ankle and no-show

  • Socks

    Crew, ankle and no-show

  • Quick add

    Crew Sock

    White

    $18

  • Quick add

    Ankle Sock

    Black

    $18

  • Quick add

    No Show Sock

    Black

    $18

Size

Colour

1
View full details

Real Results from Real Customers

What customers say about Step One.

Rated 4.5 out of 5TrustScore 4.5

30-day First Pair Guarantee

Love them or they're free. If you don't love your first pair, we'll give you a full refund.

Shop Step OneLearn more

Frequently Asked Questions

Why should I switch to bamboo underwear? My cotton undies are surely good enough

No - cotton undies aren't good! Our men’s underwear and women’s underwear are made from viscose derived from bamboo - a fabric that’s breathable, super soft, moisture-wicking, and surprisingly durable. Oh, and it’s environmentally friendly too.

How do I choose the right size undies?

Finding the right fit is easy. Just head to our size guide for all the details. If you’re between sizes, we suggest sizing up for extra comfort. You can also browse our men’s underwear or women’s underwear collections to see how each style fits before you choose.

Is there a guarantee if I don't love them?

Yes, we’ve got you covered with our First Pair Guarantee. If you don’t love your first pair, we’ll refund you - no questions asked.

Bamboo underwear for men and women

When it comes to comfortable, stylish underwear, look no further than our range of bamboo viscose underwear for men and women in Australia.

Our range includes men's boxer briefs, trunks and briefs, plus women's bikini briefs, full briefs, boylegs and thongs, all designed for comfort and support. Our bamboo underwear is made from viscose derived from organically grown bamboo, a fabric that's soft, breathable and moisture-wicking. Our factories are BSCI or SA8000 accredited, and our packaging is certified compostable to AS4736.

Whether you're shopping for men's underwear or women's undies, there's something here for everyone. Upgrade your underwear drawer and feel the difference bamboo makes.