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Stand Out From The Pack - Shop Simply Ze Best
Love from 17,543+ 5-Star Reviews!
Love from 17,543+ 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
5.0
Rated 5.0 out of 5 stars
4 Reviews

Simply Ze Best

Bamboo Crew Socks

$23

$20 Members

New
4.9
Rated 4.9 out of 5 stars
192 Reviews

Simply Ze Best

Men's Trunk - Naturals

$35

$25 Members

New
4.8
Rated 4.8 out of 5 stars
477 Reviews

Simply Ze Best

Women's Crop

$35

$25 Members

New
5.0
Rated 5.0 out of 5 stars
66 Reviews

Simply Ze Best

Women's Midi

$35

$25 Members

Shop All New Arrivals
4.9
Rated 4.9 out of 5 stars
3,614 Reviews

Chick Chick Boom

Men's Trunk

$35

$25 Members

4.8
Rated 4.8 out of 5 stars
477 Reviews

Camo-line

Women's Crop

$35

$33 Members

5.0
Rated 5.0 out of 5 stars
66 Reviews

Wheelie Sour

Women's Midi

$35

$30 Members

5.0
Rated 5.0 out of 5 stars
13 Reviews

Sunshine Ranch

Women's Pyjama Set

$99

$85 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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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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12/02/25

HyperBlock

A fusion of big, bold colours, high energy, and nods to 80s retro. HyperBlock is made for those who live loud, play hard, and never tone it down.

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23/01/25

Simply Ze Best

Why blend in when you were born to stand out? It's Simply Ze Best! Better than all the rest! 

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13/01/25

Year of the Snake

To celebrate the year of the snake we have created a design to bring you nothing but luck & prosperity in 2025!

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