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It's Frooty Booty time. Shop our latest collection
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
Shop All New Arrivals
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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

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.

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Merino Wool Underwear

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

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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!

See All Articles >
13/06/24

Everything Old is New Again

The 90’s is now considered vintage! And just like previous revivals that have been reincarnated by today’s trendsetters - the 90’s is back in a big way! 

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06/06/24

Turn your Underwear into Garden Gold

Learn how we compost at Knobby HQ, the tips we have learnt along the way, and how you can even compost your Knobby underwear.

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30/05/24

Naturals vs BottleBlend

Let us tell you why you need Naturals and BottleBlend in your life.

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