Boxer Brief

Love them or they're free Limited Edition
£17 £14.45

Low as £13.60

Best Seller
Anti-Chafe
Soft Bamboo Viscose
Anti-Sweat
Boxer Brief - Celtic Baddies - Bamboo Underwear
Boxer Brief - Celtic Baddies - Bamboo Underwear
Boxer Brief - Celtic Baddies - Bamboo Underwear
Boxer Brief - Celtic Baddies - Bamboo Underwear
Boxer Brief - Celtic Baddies - Bamboo Underwear
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Boxer Brief

Love them or they're free Limited Edition
£17 £14.45

Low as £13.60

Best Seller
Anti-Chafe
Soft Bamboo Viscose
Anti-Sweat
Boxer Brief - Juicy Plums Boxer Brief - Snowballs Boxer Brief - Black Currants Boxer Brief - Smoking Gun Boxer Brief - Ahoy Sailor Boxer Brief - Butter Nuts Boxer Brief - Smashed Avo Boxer Brief - Scorpions Boxer Brief - Black Mambas Boxer Brief - Dark Navy Boxer Brief - Deep Purple Boxer Brief - Dark Green Boxer Brief - Dark Grey Boxer Brief - Snow Worries Boxer Brief - Vivid Blue Boxer Brief - Hyper Glow Boxer Brief - Winter Berry Boxer Brief - Salted Lime Boxer Brief - Lyons Blue Boxer Brief - Rouge Noir Boxer Brief - Neon Strikes Boxer Brief - Love Confidential Boxer Brief - Shredders Boxer Brief - Celtic Baddies Boxer Brief - Bad Bunniez Boxer Brief - Yacht Rock Vol. 1 Boxer Brief - Yacht Rock Vol. 2 Boxer Brief - Melange Light Grey Boxer Brief - Melange Dusty Canyon Boxer Brief - Eurekas Boxer Brief - Yacht Rock Vol. 3 Boxer Brief - Lowlands Boxer Brief - True Maroon Boxer Brief - Toucans Boxer Brief - Decades: 70's Boxer Brief - Decades: 80's Boxer Brief - Decades: 90's Boxer Brief - Decades: Y2K Boxer Brief - Commandos Boxer Brief - Yacht Rock Vol. 4 Boxer Brief - Yacht Rock Vol. 5 Boxer Brief - Stonewash Grey Boxer Brief - Desert Sage Boxer Brief - My Love is the Sea Boxer Brief - Crocz

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

Juicy Plums
Snowballs
Black Currants
Smoking Gun
Ahoy Sailor
Butter Nuts
Smashed Avo
Scorpions
Black Mambas
Dark Navy
Deep Purple
Dark Green
Dark Grey
Snow Worries
Vivid Blue
Hyper Glow
Winter Berry
Salted Lime
Lyons Blue
Rouge Noir
Neon Strikes
Love Confidential
Shredders
Celtic Baddies
Bad Bunniez
Yacht Rock Vol. 1
Yacht Rock Vol. 2
Melange Light Grey
Melange Dusty Canyon
Eurekas
Yacht Rock Vol. 3
Lowlands
True Maroon
Toucans
Decades: 70's
Decades: 80's
Decades: 90's
Decades: Y2K
Commandos
Yacht Rock Vol. 4
Yacht Rock Vol. 5
Stonewash Grey
Desert Sage
My Love is the Sea
Crocz
Crew / Ankle / No-Show Socks

Crew / Ankle / No-Show Socks

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

Make a statement this St Patrick’s Day with our limited-edition Paddy’s Day boxer brief, featuring a rich shamrock green base covered in playful Irish icons—clovers, harps, pints, and more—to bring serious festive energy to your top drawer.

Why You’ll Love Them

  • Our standard boxer brief is designed for guys with athletic builds and thicker thighs, giving you a smooth, minimalist fit that moves with you from first pint to last call.

  • The innovative 3D Comfort Pouch uses hidden elastic architecture that naturally contours to your body, keeping everything supported without harsh compression or constant readjustment.

  • UltraGlyde™ panels along the inner thighs stop ride-up and chafing in their tracks, whether you’re at your desk, at the gym, or dancing your way through the parade.

Sustainable Comfort

  • Crafted from super soft bamboo viscose (95% bamboo viscose, 5% spandex), these boxer briefs feel incredible against your skin while wicking away moisture to keep you cool and dry.

  • Produced using an eco-friendly closed-loop system so you can celebrate in comfort and with a cleaner conscience.

Risk-Free & Limited Edition

  • Try them with our First Pair Guarantee—if you don’t absolutely love them, they’re FREE. Mix and match sizes, colors, or styles to build your perfect multi-pack.

  • Limited-edition St Patrick’s Day print—once they’re gone, they’re gone.

Our Boxer Brief & Trunk 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:

UK Mainland = approx. 2-3 business days after dispatch.

International shipping is available and calculated at checkout.

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.