Underwear range at aussieBum - CottonSoft Onyx Black Brief

Early 2025
Be among the first to own AR-XPLY's 'Cluster', a groundbreaking collection that redifines fashion and functionality.
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Early 2025
Be among the first to own AR-XPLY's 'Cluster', a groundbreaking collection that redifines fashion and functionality.
*Please enter your email address
Refer a friend TODAY & you both Get 10% off!*
Onyx Black
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aussieBum underwear - Cotton Soft
Cotton Soft - Brief - Onyx
Cotton Soft - Brief - Onyx.mp4
CottonSoft Onyx Black Lifestyle Image
CottonSoft Onyx Black Lifestyle Image
CottonSoft Onyx Black Lifestyle Image
CottonSoft Onyx Black Lifestyle Image
aussieBum underwear - Cotton Soft Video Image Cotton Soft - Brief - Onyx Video Image Cotton Soft - Brief - Onyx.mp4 Video Image CottonSoft Onyx Black Lifestyle Image CottonSoft Onyx Black Lifestyle Image CottonSoft Onyx Black Lifestyle Image CottonSoft Onyx Black Lifestyle Image Video Image
Life is too easy in CottonSoft.
Experience ultimate comfort and quality with the entire aussieBum CottonSoft range – in both briefs and hipsters. They come in limited edition collectable waistbands in striking tones. These ultra-soft cotton-blend undies offer luxe cosiness where it counts and are sure to fit you like a dream.

Proudly Australian Made

90% Cotton 10% Elastane.

Image: Model Jacob is 6'1" (185cm) and has a 33" (84cm) waist. He is wearing a size L

• Side Seam Length M 12.5 cm
• Stretch Cotton Elastane Body which make them breathable as well as hold their shape
• The famous aussieBum contour pouch
• Taping Panel Detail – for extra focus
• Elasticised waistband with aussieBum branding
• Leg binding – for both comfort and support
• Flatlock stitching details - adding strength to the fit
• Mid-rise – for that essential aussieBum look
4.8 / 5 100 reviews
3 months ago
Phillip
Comfortable
5 months ago
Gino
I love the material very comfortable to wear it's just that the pouch is kinda big for us Asians. I hope we can also choose the size of the pouch.
2 years ago
carolyn thomas
These undies are my son’s and husband’s favourite underwear. They are well made and are much better quality than other underwear brands in the same price range.
2 years ago
Sean Torrie
These are the best a man can get. Good on ya Aussiebum.
2 years ago
Carter Hnatuk
Great daily pair!
2 years ago
Rod Sawtell
So comfy, hold my package well.
2 years ago
Ahlfie
Very comfy
2 years ago
Michael Rogan
Nice soft cotton feel. A nicer fit for bigger blokes. Quality and look is great.
2 years ago
Takahiro Tatsunami
Amazingly comfy
2 years ago
Yolanda Van der Nest
Very comfortable! Wash and wear beautiful.
3 years ago
Steve
These briefs are a great fit
3 years ago
Daphna Pavlicek
Product has a stitching issue . Crutch Seam is to thick and presses in so hard it hurts to sit ,even for a few minutes. Need fixing.
3 years ago
Adrian Matthews-Wall
So comfy you don’t even know you are wearing them
3 years ago
Robert Lane
Comfortable, very high quality, value for money. Highly recommended.
3 years ago
Hayley Bastian
Good service, great merchandise, my hubby luvs them. It's all he wares!
3 years ago
Angelina Beadman
Comfortable, love the material and design
4 years ago
Cameron Moses
Very comfy. Love these they are one of my favourites from AussieBum.
4 years ago
Peter
I brought these for my partner, he loves them as they show off his cute butt.. He always looks YUM in AussieBum!
4 years ago
Corey Anderson
Love them sexy
4 years ago
Damien L
Comfy, look sexy for the wife, 5 stars all the way assiebum
4 years ago
Josh
Top quality product that is 100% Australian made. Always my first choice.
4 years ago
Paul Brown
The fit, the comfort and style
4 years ago
Matthew Jackson
Perfect comfortable look great
4 years ago
ANTE PIVAC
Very comfortable and Australian made !!
4 years ago
Mat
Great fitting and very comfortable
4 years ago
Bcrb
Nice design Comfortable
4 years ago
Ok
Nice fitting underwear.
4 years ago
Peter See
I bought these as a birthday present for myself. I love them!
4 years ago
Shane Maloney
Very comfortable always good quality!
4 years ago
David Callanam
Very comfortable
4 years ago
Brent
It’s all in the name, “CottonSoft”. These are so comfortable and soft, while still making me feel secure. Nice range of colour options too.
4 years ago
Peter D
Great fit. Well made.
4 years ago
Jarred
Perfect fit, really comfy
4 years ago
Simon Welsh
Looks good . Decent fit
4 years ago
Siwapol Kansuwong
Good quality.
4 years ago
Coola Isthebest
Love Em very comfortable
4 years ago
Robert M
Great product
4 years ago
Michael O'Brien
Perfect fit and very comfortable
4 years ago
Phil Taylor
Fit like a glove and come off as quick when the boys see them lol. I’ve had a lot of compliments and I think no actually I just don’t think I know some of my friends will be placing orders soon aswell. Once I told them the price I paid for the quality product you sent me I could tell they want some Aussie bum wear for themselves. You guys should consider using me as a plus size model as your undies made this plump bear look great. Thank you couldn’t be happier with the fit and comfort your product offers. Next time I’ll have photos prepared I wasn’t expecting this msg.
4 years ago
Nick Lowther
I love the fit and the underwear however the tag sewed on the back of them is so in comfortable, I have to cut the corners off all of my pairs so they don’t itch! I really recommend looking at changing this. Bonds do a sticker style and you don’t know it’s there
4 years ago
customer
Amazing thank you
4 years ago
Christopher Boggia
Great fit and comfortable!!
4 years ago
Willy jones Lopez
Awesome!!!
4 years ago
Reece Zoutman
The colour drew me to purchase and the fit is great, not my first pair but the quality is always amazing
4 years ago
Andrew Butcher
Quality fabric and feel
5 years ago
Pavel Erokhin
Good fabric composition, I really like hot it feels on my skin
5 years ago
Tsz Sun Lam
a very comfortable basic cotton underwear
5 years ago
Zoltan Marton
Very good quality and material. Perfect tailoring.
5 years ago
Luke
The sizing guide said I was a small... I don't think I've been buying the right size undies for year! These are damn well comfortable
5 years ago
Andrew Gill
Very comfortable. Love the gold.
5 years ago
Al
So comfortable
5 years ago
Peter Colville
I've already told you of my disappointment
5 years ago
ANADRES NAVARRO
Son súper cómodos sin duda repetiré el pedido!
5 years ago
Kevin Hunter
I bought the classic original and saw that these are 100% cotton, so I bought this pair to try. Overall, a good fit.
5 years ago
Gregor Kneussel
Great undies. Unfortunately, the cut has slightly changed, they now have a higher rise.
5 years ago
David Wisbey
Really comfortable. Not to snug but holds everything nicely.
5 years ago
Sergey Solovey
Fantastic Good
5 years ago
승민 백
Many Thank you
5 years ago
유석 정
it will be much more awesome if you guyz make pocket in the front part!!
5 years ago
Shane K
Fits well- the pouch compartment is great and comfortable
5 years ago
RAUL ARAMBUL
Es el primer slip que compro con este tejido . Maravilloso, cómodo y agradable.
5 years ago
Nikhil Mistry
Perfect basics
5 years ago
Andrey Kulikov
Nice quality and size is correct
5 years ago
Vangelis Michael
Great fit and comfort
5 years ago
Alberto Pérez
Es perfecto
5 years ago
Don Davis
Great fit perfect
5 years ago
KICHAN LEE
Very soft & sexy
5 years ago
Luis Pazos Pardo
Great buy and great price!
5 years ago
Dane Sims
Great under wear and delivery wad great...
5 years ago
Steven B.
So comfortable and a great fit, roomy but still supportive, and they look great without being too loud
5 years ago
Liam Barnes
Super cute & comfy! Well worth the purchase
5 years ago
Mladen Ivaneza
Nice and comfy
5 years ago
Wellington
Comfortable and modern.
5 years ago
Simon Kennedy
Super comfy
5 years ago
Jadan Hutchings
26 years and I’ve finally found the comfiest undies. Very comfortable with super high quality
5 years ago
Joseph Palazzola
Great product love them
5 years ago
Mark Dennis
Excellent quality and very comfortable!
5 years ago
CESAR ALVARADO
The most comfortable undies !
5 years ago
Welly William
Nice material
5 years ago
Gregory Wallace
Excellent undies
5 years ago
Stuart. London.
Love this colour way - more gold please!
5 years ago
Jeremy Raine
Very comfortable... Would always recommend to mate's....well priced... therefore hard to beat
5 years ago
Andrew
The most comfortable pants!
5 years ago
Kyle Bird
Love them they fit my package very well and are very comfortable to wear
5 years ago
Thomas Geissert
Very comfortable
5 years ago
KAM MUN HUI
So cool of golden color with black
5 years ago
marc besson
Merveilleux !
5 years ago
Agnis Gleizups
Very good but not so comfortable for mi 'packag'. I need a more space thayr. They look very chic.
5 years ago
WOONHWAN PARK
Good, comfortable!!
5 years ago
Garth Smith
comfy and a good fit round the boys.. i've got lots of AB undies and these are good
5 years ago
patchara suwannakham
I love it
5 years ago
Apisit Seehom
Soft and fit
5 years ago
David Tricon
Very confortable
5 years ago
Joel Newton
So good that I ordered enough to wear daily!
5 years ago
Al
The absolute hottest undies going
5 years ago
MIN
super comfort and cool design
5 years ago
Jiri Dvorak
Absolutely the best underwear!
5 years ago
cheattha thongbai
Very soft.fit for my body.I love it.
5 years ago
Samuel Becker
Comfortable - never thought I’d wear briefs for daily use, but these are enjoyable!
5 years ago
DAMASUS Yong
Fit perfectly with finest fabric
Show your aussieBums love and they will love you right back for a long time to come.
Gentle machine wash in cold water.
Do not tumble dry (better for your aussieBums and better for the environment).
No need to get all fancy and take them to the drycleaners either (in fact, it’s better if you don’t).
And, while we’re impressed that you like ironed clothes, do not iron your aussieBums.
Avoid rough surfaces.
Note: placement of logo on waistband may differ.
For the best fit, match your sock size to your shoe size.
Sizes Uk/Aus Usa Eur Asia
S-M 7-8 8-9 41-43 S-M
L-XL 9-10 10-11 44-45 L-XL
Wrap a measuring tape around your hip bone line, making sure the tape is parallel to the ground. This measurement determines your waist size.
Sizes Inches Cm Eur Aus Asia
XS 28-29 70-75 2 12 S
S 30-31 75-80 3 14 M
M 32-33 80-85 4 16 L
L 34-35 85-90 5 18 XL
XL 36-37 90-95 6 20 XXL
XXL 38-39 95-100 7 22 XXXL
XXXL 40-41 100-105 8 24 XXXXL
Wrap a measuring tape around your nipple line, making sure the tape is parallel to the ground. This measurement determines your chest size.
Sizes Inches Cm
XS 34-36 86-91
S 36 - 38 91 - 96
M 38 - 40 96 - 101
L 40 - 42 101 - 107
XL 42 - 44 107 - 112
XXL 44 - 46 112 - 117
XXXL 46 - 48 117 - 122
Wrap a measuring tape around your hip bone line, making sure the tape is parallel to the ground. This measurement determines your waist size.
Sizes Inches Cm Eur Aus
S 30-31 75-80 3 14
M 32-33 80-85 4 16
L 34-35 85-90 5 18
XL 36-37 90-95 6 20
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CottonSoft Onyx Black Main Image
CottonSoft Onyx Black Main Image
CottonSoft
Sale $12.95 USD (Inc. Sales Tax)
RRP $24.95 USD
Everyday lowest price
On Sale
-50%
This garment has a smaller than usual fit. We recommend buying one size larger than you would usually wear.
Hi mate,

Now for some good news, actually it's fantastic news. VAT (value-added Tax) for customers in the EU & UK is now prepaid! That means that you no longer have to pay any additional VAT when your order arrives in its destination country – its included in the price of your items.

Thanks to our shipping partners SEKO & DHL we can now offer VAT prepaid on all orders delivered to the following countries: Austria, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden & United Kingdom with more to be added in the near future.

We are so excited we can now offer this to all EU & UK customers. Our mission is to always produce the best quality made products at the most affordable price.

Thank you so much for being part of our Tribe, without you aussieBum would not be real.

Sean Ashby
Free Economy Shipping is included on all orders over $60 USD
If you’re not happy with your purchase you can return items, in original condition, within 90 days from date of receipt. *Excludes Sale items.
We also have a Customer Service team in-house so you know you're talking to a real aussieBum team member.
Free Economy Shipping is included on all orders over $60 USD
VAT Now Prepaid for EU & UK
Hi mate,

Now for some good news, actually it's fantastic news. VAT (value-added Tax) for customers in the EU & UK is now prepaid! That means that you no longer have to pay any additional VAT when your order arrives in its destination country – its included in the price of your items.

Thanks to our shipping partners SEKO & DHL we can now offer VAT prepaid on all orders delivered to the following countries: Austria, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden & United Kingdom with more to be added in the near future.

We are so excited we can now offer this to all EU & UK customers. Our mission is to always produce the best quality made products at the most affordable price.

Thank you so much for being part of our Tribe, without you aussieBum would not be real.

Sean Ashby
90 Day Returns*
If you’re not happy with your purchase you can return items, in original condition, within 90 days from date of receipt. *Excludes Sale items.
100% Satisfaction Guarantee
We also have a Customer Service team in-house so you know you're talking to a real aussieBum team member.