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Love from 13,670+ 5-Star Reviews!
Love from 13,670+ 5-Star Reviews!

Official
Underwear
Of Fun!

We'll put the power in your pants and a smile on your dial. We are the Undie Club!

TRY THE UNDIE CLUB Shop All

Love them, or they're Free.

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We create amazing underneaths that make you feel ridiculously good and give you the power to be your most confident self!

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Unique Designs
Unique Designs
Unbeatable Comfort
Unbeatable Comfort
Planet Friendly
Planet Friendly
Community Focused
Community Focused
New
4.9
Rated 4.9 out of 5 stars
3,208 Reviews

Hex Appeal

Men's Trunk

$33

$25 Members

New
5.0
Rated 5.0 out of 5 stars
144 Reviews

Hex Appeal

New
4.9
Rated 4.9 out of 5 stars
15 Reviews

Hex Appeal

New
4.9
Rated 4.9 out of 5 stars
34 Reviews

Hex Appeal

Shop All New Arrivals
New
4.8
Rated 4.8 out of 5 stars
110 Reviews

Diamond Beach

Men's Brief - Naturals

$34

$27 Members

4.8
Rated 4.8 out of 5 stars
444 Reviews

Camo-line

Women's Crop

$35

$33 Members

New
5.0
Rated 5.0 out of 5 stars
41 Reviews

Wheelie Sour

Women's Midi

$35

$30 Members

4.9
Rated 4.9 out of 5 stars
1,073 Reviews

Summer Bummer

Men's Long Leg

$33

$25 Members

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Join the Undie Club, Unlock a World of Perks!

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Undie Club members receive free domestic shipping, 15% off storewide, plus all these additional member-only perks!

Undie Club
Buy Once
Comfort Guaranteed
Earn loyalty points
Early access to new designs
Save 15% storewide
Free shipping within Australia
Member only products
VIP access to sales events

Join over 984,381 happy Knobby Undie Club members

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So far we have saved 235,231 bottles from finding its way into our oceans.

Join us on our journey to become the most sustainable underwear brand in the world.

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Bottleblend™ Underwear

Star Icon All our Undie Club products are made using BottleBlend™ fabric, turning trash into treasure!

Redefined Comfort with Bamboo and Merino Wool Wonders

Bamboo Underwear

Star Icon Bamboo is a renewable natural, fast-growing grass.

Star Icon Bamboo is soft, cooling and works with your body chemistry for a healthier you.

SHOP BAMBOO

Merino Wool Underwear

Star Icon 100% Australian sourced Merino wool grown and sourced locally in Australia.

SHOP MERINO WOOL
Lead Icon KEEPING IT ETHICAL

Our packaging is renewable, sustainable and compostable.

We use zero single use plastics! Yep, zilch!

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Get the Inside Scoop

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Delve into stories of comfort, sustainability, and all things undie-licious!

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03/10/24

Hex Appeal - Castles of Australia

Hex Appeal features two skeletal wizards locked in battle in a creepy castle. Let's see what other castles Australia has to offer. 

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20/09/24

Diamond Beach

Let’s delve into the icy waters of Diamond Beach with these key facts about this epic location.

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04/09/24

Do you think they-saurus?

Camouflage is a defence or tactic that is used to disguise a species appearance so they blend in with their surroundings & remain stealthy AF. Knobby has decided to put a prehistoric twist on it!

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