MEN'S TRUNK SUBSCRIPTION

Men's Trunk Subscription

$25

Tax included.

2XL

3XL

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SHIPPING & RETURNS

FREE Standard Domestic Shipping for orders over $100

$6 Standard Domestic Shipping for orders under $100

Order before 1pm AEST on weekdays and we'll dispatch the same day!

Returns

Get in touch with our Customer Happiness Team within 30 days of receiving your Knobbys if you'd like to organise an exchange, refund, coupon or credit! More details

Save with the Undie Club

We’ll send you our latest monthly edition, for only $25, before it’s released here to the public!

Try The Club

Flying off the shelf

See what a bunch of other legends are buying. Go ahead, treat yourself.

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In the wild. Tried them. Loved them!

We give the #knobbynation the ability to be their most confident self.

Life is easier in the Club.

Legendary savings

Save up to $13 per pair and score bloody amazing discounts on special edition ranges.

Free shipping

No worries, this one’s on us within Australia. We also ship to NZ, USA, UK and Canada.

First in best dressed

Guaranteed to get into our new designs before they’re available to the public or sold out

Free surprises

We’ll often include some extra goodies to match your undies. Shhhh, for members only!

Try The Club

Never miss a design. Save in the Undie Club + free shipping.

4.9

Rated 4.9 out of 5 stars

Based on 4,092 reviews

Total 5 star reviews: 3.9k Total 4 star reviews: 182 Total 3 star reviews: 11 Total 2 star reviews: 4 Total 1 star reviews: 9

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4,092 reviews

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Andrew R.
Verified Buyer
Rated 5 out of 5 stars
6/15/25
So good!
Great design with vivid colours and amazing comfort. One of my favourites!
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Slater C.
Verified Buyer
Rated 5 out of 5 stars
6/13/25
I love them
They are the best and I only where knobbys I’m also starting to get your socks
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Kalina R.
Verified Buyer
Rated 5 out of 5 stars
6/13/25
Perfect present idea!!
The subscription undies is the BEST present for people who you’re unsure about… or sure about. I bought a 1yr subscription for my partner which means every month he gets another piece of his present. Plus it was easier for me to pay for, only paying monthly.
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Chloe H.
Verified Buyer
Rated 5 out of 5 stars
6/13/25
Best Jocks Ever
My crack being out at work was always a talking point and then I started wearing knobbys and now all they talk about are my colourful jocks, the knobby perfectly frame my plumbers crack and fit me perfectly #bigboythighs
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Lorraine T.
Verified Buyer
Rated 5 out of 5 stars
6/11/25
Soft and beautiful designs
Incredibly soft fabric. Natural and breathable, great for everyday wear. And so colourful and pretty. Seams are all flat so there's no irritation. The knobbys label is on the outside of the waistband, nothing scratching your skin on the inside.
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shaynee m.
Verified Buyer
Rated 5 out of 5 stars
6/11/25
Perfect trunk for active boys
My boys have been in knobby trunks since toilet training. They are easy to pull up and pull down while doing wee dance . Super comfy and breathable for summer for the on the go boys that don’t stop. Also clean up really well!
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We create underwear that empowers our community with confidence to be unapologetically themselves.

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Knobby acknowledges the Gabi Gabi people and the Jinibara people who are the Traditional Custodians of this land on which we work. We acknowledge the Traditional Custodians of Country throughout Australia. We recognise their continuous relationship to the land and pay our respects to Elders past, present and emerging.