Natural Waist Comfy Bum Knickers - Single Colour Triple Set - Black

$ 177.00 AUD $ 139.00 AUD SAVE 21%

Who doesn't love a comfy bum? Based on our Classic Comfy Bum and made with 100% Australian sustainable cotton fabric, the new Natural Waist Comfy Bum Knickers - Single Colour Triple Set - Black have been upgraded with our Superfine fabric and fantastic Oeko-Tex certified biodegradable elastic. Great all day knickers to keep you so cool and comfortable that you'll forget your wearing them! Soft luxurious fabric that is breathable, durable and Sustainable  100% Cotton with Oeko-Tex Biodegradable...

Size: 8


Color: Black

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How do I choose the right size? 
First choose your base size using your bust, waist and hip measurements and then check the garment details for fit. ie if you are a size 14 but the garment description says it is a slim fit, you can choose whether to go with the 14 or the 16 for a looser fit. 


8 4 8 36 80cm 70cm 85cm
10 6 10 38 85cm 75cm 90cm
12 8 12 40 90cm 80cm 95cm
14 10 14 42 95cm 85cm 100cm
16 12 16 44 100cm 90cm 105cm
18 14 18 46 105cm 95cm 110cm
20 16 20 48 110cm 100cm 115cm
22 18 22 50 120cm 110cm 125cm

 Please note that we have previously made size 18-22 garments but they have not been as common as sizes 8-16 and therefore do not constantly stock these sizes. Please contact us if you do not see your size currently available. 

WOMEN'S BRA SIZING - all in centimetres

Underbust measuring
Make sure the tape measure is pulled firmly under the bust to give the most accurate measure for the best underbust support. This is the structure that will work to support and take pressure off the neck and shoulders.  

AU SIZE 10 12 14 16 18 20 22
UNDER BUST 68 - 72 73 - 77 78 - 82 83 - 87 88 - 92 92 - 97 98 - 102
Overbust measurements
This measurement is taken over the highest point of the bust in the most supportive bra you have without being a minimising bra. This will give you the corresponding cup size

AU SIZE 10 12 14 16 18 20 22
Cup A 82-84 87-89 92-94 97-99 102-104 107-109 112-114
Cup B 84-86 89-91 94-96 99-101 104-106 109-111 114-116
Cup C 86-88 91-93 96-98 101-103 106-108 111-113 116-118
Cup D 88-90 93-95 98-100 103-105 108-110 113-115 118-120
Cup DD 90-92 95-97 100-102 105-107 110-112 115-117 120-122
Cup E 92-94 97-99 102-104 107-109 112-114 117-119 122-124
Cup F 94-96 99-101 104-106 109-111 114-116 119-121 124-126
Cup G 96-98 101-103 106-108 111-113 116-118 121-123 126-128
Converting sizes from different coutries 
If you're not familiar with different region sizing, please see the table below however we recommend measuring yourself with a tape measure and check the tables above. 
UK USA Europe France Italy Australia
30 30 65 80 0 8
32 32 70 85 1 10
34 34 75 90 2 12
36 36 80 95 3 14
38 38 85 100 4 16
40 40 90 105 5 18
42 42 95 110 6 20
44 44 100 115 7 22
Chest 86 - 91 96 - 101 106 - 111 116 - 122 127 - 132
Waist 71 - 76 81 - 86 91 - 96 101 -106 111 - 116
Hip 89 - 94 99 - 104 109 - 114 119 - 124 129 - 134
Neck 37 39 42 44 47
Not quite sure? Contact us for a free measurement consultation on 1800 255 696 (AUS) or email
Care Guide

Pure 100% Cotton - Sustainably grown Australian cotton
Cold machine wash
Tumble dry on low
Medium hot iron
Wear more, wash less, repair and recyle then compost after use.


Our little Australian Made workshop has prepped the next 4 weeks to be able to deliver your orders. This table shows where our capacity is up to and when to expect your order to be dispatched.  Batch quantities are limited so first come, first served.

Australian Made, Owned and Grown

Our cotton is grown in Queensland and our garments are produced at our off-grid factory in regional Victoria

Certified by Ethical Clothing Australia

Peace of mind that the people making your garments are receiving a living wage

Carbon Positive

We've partnered with Greenfleet to plant one tree for every Farm To Hanger garment sold

30-Day Satisfaction Guarantee

We're so confident you'll love our products as much as we do, that we've backed them with a 30-day satisfaciton guarantee.

5-stars from our customers

"These are the best undies. Purchased mine 3 years ago and still like brand new! Unbelievable value."

- Diane S.

Biodegradable Underwear

The answer to the growing issue of textile waste.

100% Australian-grown cotton

With no synthetics, no elastane, and no toxic dyes making them zero-waste

Engineed for comfort

Designed to give you support and flexibility in all the right places (and that means no wedgies!)

Quality, 100% Australian Made craftsmanship

Carefully hand-crafted for durable intimates that last wash after wash and wear after wear

Completely biodegradable

We even produced our own Oeko-Tex certified biodegradable elastic, ensuring our knickers are completely compostable!

Quality At Every Step

Mass production has created a low quality, short lifecycle synthetic industry.

We know that the core of good products is caring about not only what they are made of, but how they are made.

Our textile fabrication is done by an amazing dedicated team. Producing the highest quality fabrics, using the sustainably grown Australian cotton and all in-house craftsmanship.

Still not sure?

We've answered your most burning questions below

Why can't you make your garments cheaper?
Why should I buy Australian Made?
How long will my garments last?
Are the any synthetics? What about your elastic?
What if I buy the wrong size or style?
Do you ship overseas?

Customer Reviews

Based on 30 reviews
J D.
The right ones

Over the years I've tried three different styles and sizes of undies and these are the best ones for me. They're terrific.

Debbie H.

Natural Waist Comfy Bum Knickers - Single Colour Triple Set - Black

Catherine A.
Very comfortable knickers

The knickers I purchased were just as advertised. They are very comfortable & easy to wear. I would also say they are the best cotton knickers I have worn. Would highly recommend.

angela M.
Great Fit

After my annoyance at the current knickers available and looking everywhere, I was relieved to find these on line. I am so happy I did, they are perfect. Great fit and no digging in tight elastic. Hightly Recommended

Susan W.
Comfort is correct!

Very happy with my purchase of Comfy Bum knickers, lightweight fabric which dries quite quickly and overall comfort is excellent!

Maryanne C.
Bum Knickers- Great!!!

I purchased a 3 pack of Bum Knickers in March. They have been worn and washed every single day since then as they are very comfortable and easy to launder. I appreciate your ethics which means that I am not adding to a global problem. The packaging was lovely. Thank you

pam c.
Comfiest Bum Ever!

I love these knickers and look forward to replacing all my other makes as they wear out. They are so soft and comfortable and snug fitting I wouldn’t know i had them on. It’s great to know they are entirely Australian made with natural materials grown in Australia. I thoroughly recommend them.

Luigina M.W.
Natural waist Comfy Bum Knickers

The best Knickers I’ve worn in the past 15 years . I’m never picking my bum whilst wearing them they fit perfect and feel great on . LOVE THEM

Celia K.
Truly comfy

The knickers arrived in a very timely fashion. My first impression was that they looked too big, but they were a perfect fit. They are a heavier duty material than I am used to but do not feel hot. I would highly recommend them.

Dawn A.
So comfy!

I love my Comfy Bum knickers. They are just soooo comfy to wear all day long. No wedgies, just a good fit. They wash up well. I’m so happy with them,I’m going back for more.

✔ Natural Fibres  ✔ 100% Australian Made  ✔ Ethically Produced ✔ Zero Waste ✔ Zero Plastic  ✔ Closed Loop ✔ Vegan ✔ Biodegradable