Order Your STEPtember Pair

STEPtember is a global health and wellness fundraising event that encourages you to move 10,000 steps a day while fundraising for people with cerebral palsy.

Cerebral palsy is the most common childhood physical disability in Australia, with one child being diagnosed every 20 hours.

For every STEPtember pair sold, we will donate $5 to Cerebral Palsy Alliance - a ground-breaking, global centre of expertise for cerebral palsy services and support.

We also invite you to participate in STEPtember this year. STEPtember registrations for Step One customers are now open – register for the challenge here!

Order Your STEPtember Pair

STEPtember is a global health and wellness fundraising event that encourages you to move 10,000 steps a day while fundraising for people with cerebral palsy.

Cerebral palsy is the most common childhood physical disability in Australia, with one child being diagnosed every 20 hours.

For every STEPtember pair sold, we will donate $5 to Cerebral Palsy Alliance - a ground-breaking, global centre of expertise for cerebral palsy services and support.

We also invite you to participate in STEPtember this year. STEPtember registrations for Step One customers are now open – register for the challenge here!
Boxer Brief - STEPtember - Bamboo Underwear - Model:Mitch
Mitch is 186cm tall, 82cm waist, wearing a size M
Boxer Brief - STEPtember - Bamboo Underwear - Model:Mitch
Mitch is 186cm tall, 82cm waist, wearing a size M
Boxer Brief - STEPtember - Bamboo Underwear - Model:Mitch
Mitch is 186cm tall, 82cm waist, wearing a size M
Boxer Brief - STEPtember - Bamboo Underwear - Model:Mitch
Mitch is 186cm tall, 82cm waist, wearing a size M
Boxer Brief - STEPtember - Bamboo Underwear - Model:Baba
Baba is 177cm tall, 86cm waist, wearing a size XL
Boxer Brief - STEPtember - Bamboo Underwear - Model:Baba
Baba is 177cm tall, 86cm waist, wearing a size XL
⚠️ LOW STOCK - SELLING FAST ⚠️
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30 Day First Pair Guarantee

We are so confident that you'll love your Step Ones...

We'll give you a FULL REFUND on your FIRST PAIR

If you don't like them for whatever reason

Boxer Brief - STEPtember

Sale price$25.00 Regular price$35.00

Sizing Chart
Example: If you usually wear a medium, we recommend ordering a large.
SIZE WAIST (cm) WAIST (in)
2XS / (Size 4/8) 56-60cm 22-24in
XS / (Size 8/12) 61-66cm 24-26in
Small 70-76cm 28-30in
Medium 76-81cm 30-32in
Large 83-88cm 33-35in
Extra Large 91-101cm 36-40in
2XL 106-116cm 42-46in
3XL  119-124cm 47-49in
4XL 127-132cm 50-52in
5XL 137-142cm 54-56in
6XL 144-150cm 57-59in


Thicker legs? Then go for boxer briefs
Thin legs? Then trunks are for you

Our 30-Day First Pair Guarantee means you can try 1 pair for up to 30 days and if it's the wrong size, then we'll send out a different size, for FREE.

Note: If the replacement pair is still not a good fit, we can no longer process a refund or send another replacement pair. I'm sure you'd understand!

First Pair Guarantee

We are so confident you'll love your Step Ones, we'll give you a full refund on your first opened and worn pair if you don't like them for any reason.

Free shipping on all orders!

Free shipping on all orders in Australia... how good!

Easy Returns

Picked the wrong size by mistake? No problem. On top of our first pair guarantee we also offer returns/exchanges on all unopened products.

Customer Service

Buy with confidence, our dedicated customer service team is available 24/7 to answer any questions you have!