Boxer Brief Sport

Love them or they're free
$33 $28.05

Low as $26.40

Longer for Activity
Anti-Chafe
Soft Bamboo Viscose
Anti-Sweat
Boxer Brief Sport - Panthers - Bamboo Underwear - Model:Daniel F
Boxer Brief Sport - Panthers - Bamboo Underwear - Model:Ivan M
Boxer Brief Sport - Panthers - Bamboo Underwear - Model:Daniel F
Boxer Brief Sport - Panthers - Bamboo Underwear - Model:Daniel F
Boxer Brief Sport - Panthers - Bamboo Underwear - Model:Daniel F
Boxer Brief Sport - Panthers - Bamboo Underwear - Model:Daniel F
Boxer Brief Sport - Panthers - Bamboo Underwear - Model:Baba
Boxer Brief Sport - Panthers - Bamboo Underwear - Model:Baba
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Boxer Brief Sport

Love them or they're free
$33 $28.05

Low as $26.40

Longer for Activity
Anti-Chafe
Soft Bamboo Viscose
Anti-Sweat
Boxer Brief Sport - Stallions Boxer Brief Sport - Hulks Boxer Brief Sport - Nightriders Boxer Brief Sport - Panthers

1. Select your fit

Boxer 6" Inseam Trunk 4" Inseam Front Fly 6" Inseam Sport 8" Inseam

2. Select your size

3. Select your quantity

4. Select your colours

Stallions
Hulks
Nightriders
Panthers
Crew / Ankle / No-Show Socks

Crew / Ankle / No-Show Socks

7
Free Shipping
30-Day Guarantee
Over 65k 5-Star Reviews

Our new Boxer Brief Sport range has all the Step One benefits you know and love, with added features designed alongside world-class athletes to meet the specific needs of sportspeople.

The Boxer Brief Sport range is 4cm longer in leg length than our boxer briefs, meaning they stay-put and won’t ride up even during extreme movement. Plus, longer UltraGlyde panels = zero chance of chafe!

The fabric is the same breathable, organically grown bamboo that wicks away sweat and keeps you cool.

The 3D elastic pouch ensures everything stays where it should, even during rigorous exercise.

Love to move? Then you need Step One Boxer Brief Sport.

Our Boxer Brief Sport range is made from 95% viscose made from bamboo and 5% spandex. This equals an extremely soft and durable pair of underwear that wicks sweat brilliantly. The sizing is considered "fitted", meaning that if you are in between sizes, we would recommend sizing up.

We aim to dispatch your order 1-2 business days after placing your order.

Free shipping, no minimum spend.

GENERAL SHIPPING TIMES:

NSW, VIC & QLD = approx. 1-3 business days after dispatch.

WA, NT, TAS = approx. 2-4 business days after dispatch.

We offer international shipping to selected countries, which is shown at checkout. International shipping may vary based on local fulfilment.

We are so confident 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.

We Science'd Underwear

We didn't just make underwear. We reinvented it.

Ultraglyde™ Panels

Friction-resistant panels prevents chafing and ride-up, ensuring all-day comfort for your thighs. No more adjusting.

3D Comfort Pouch

Anatomically designed pouch keeps everything separated and supported, reducing friction and sweating.

Sweat Wicking

Advanced sweat-wicking tech keeps you dry and comfortable, even during the hottest days or toughest workouts.

Greg Taylor - CEO & Founder
Greg Taylor - CEO & Founder
26M+
Pairs Sold
65K+
5-Star Reviews
2M+
Happy Customers
Trustpilot

Trust Score 4.5/5

Real Results from Real Customers

Which Step Ones are right for me?

Compare our styles to find your perfect fit.

Best Seller
Boxer Brief

Boxer Brief

  • 6 inch in-seam
  • Anti-chafe Ultraglyde panels
  • Bamboo viscose fabric
  • Suits thicker legs
  • 3D comfort pouch
Shop Boxer Brief
Trunk

Trunk

  • 4 inch in-seam
  • Anti-chafe Ultraglyde panels
  • Bamboo viscose fabric
  • Suits thinner legs
  • Good for shorter guys
Shop Trunk
Boxer Brief Fly

Boxer Brief Fly

  • 6 inch in-seam
  • Anti-chafe Ultraglyde panels
  • Bamboo viscose fabric
  • Easy access front fly
  • 3D comfort pouch
Shop Boxer Brief Fly
Boxer Brief Sport

Boxer Brief Sport

  • 8 inch in-seam
  • Anti-chafe Ultraglyde panels
  • Bamboo viscose fabric
  • Longer for activity
  • 3D Comfort Pouch
Shop Boxer Brief Sport
30 Days

First Pair Guarantee

Love them or they're free. If you don't love your first pair, we'll give you a full refund.

Risk-free trial
Full refund

Frequently Asked Questions

They are made from high-quality, organically grown Bamboo Viscose. This material is incredibly soft, breathable, and moisture-wicking, keeping you cool and dry all day long.
The Ultraglyde™ panels are friction-resistant panels on the inner thighs that prevent chafing and stop the legs from riding up. They ensure your legs glide past each other rather than rubbing.
Our 3D Comfort Pouch is anatomically designed to keep everything separated and supported. It reduces skin-on-skin contact, friction, and sweating, giving you the support you need without feeling restricted.
We are so confident you'll love your first pair of Step One underwear that if you don't, you can keep them and we'll give you a full refund. No questions asked. This applies to your first single pair purchase.
Machine wash cold with like colors. Tumble dry low or line dry in the shade. Do not bleach, iron, or dry clean to maintain the quality of the bamboo fabric.