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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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Model holding up Panther underwear design by Knobby Knobby underwear designs in washing basket Various Knobby mens trunk designs banner image
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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
4.8
Rated 4.8 out of 5 stars
52 Reviews

I Don't Think Theysaurus

Men's Trunk - Naturals

$34

$27 Members

New
4.9
Rated 4.9 out of 5 stars
424 Reviews

I Don't Think Theysaurus

Women's Bralette

$33

$29 Members

New
4.9
Rated 4.9 out of 5 stars
553 Reviews

I Don't Think Theysaurus

Women's Shortie

$33

$25 Members

New
4.9
Rated 4.9 out of 5 stars
312 Reviews

I Don't Think Theysaurus

Bamboo Crew Socks

$23

$20 Members

Shop All New Arrivals
4.9
Rated 4.9 out of 5 stars
2,669 Reviews

Frooty Booty

Men's Trunk

$33

$25 Members

4.8
Rated 4.8 out of 5 stars
412 Reviews

Camo-line

Women's Crop

$35

$33 Members

4.9
Rated 4.9 out of 5 stars
553 Reviews

R-Whippy

Women's Shortie

$35

$33 Members

4.9
Rated 4.9 out of 5 stars
964 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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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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04/09/24

KNOBBY x PIRATE LIFE - Behind the scenes

Knobby recently paired back up with Pirate Life Brewing for another collaboration. And what better place to get some rad photos & content then at the Pirate Life venue at Port Adelaide.

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22/08/24

Greatest Father's Day present the world has ever seen

Want to give dad something a little extra this Father’s Day? Does he need a few crispy new pairs of undies & socks? How’s he going for beer? Well Knobby has got the comp for you! 

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