

Crocz
Green gator print, across men's, women's, and kids' styles.

My Love is the Sea
Swallows mid-flight, roses in bloom, ships riding the swell

New Melange Range
Stonewash Grey & Desert Sage

Commandos
Don't go commando, get Commandos.

CloudPress Pro
Compression that actually breathes

Yacht Rocks Vol. 3
Classic nautical stripes in timeless sage green.

New Release - X-Cup!
Jockstraps haven't changed in decades. Until now.

NiteKnit Sleepwear
Engineered for rest & recovery
Low as £10.66
Select Quantity
Select Size
Add more pairs to unlock Mixed Colours bundles
Limited to one per order
Introducing our Capri Yellow SmoothFit Full Brief Underwear, a fresh and eco-friendly addition to your essentials. Designed for all-day comfort and confidence, this full coverage brief combines sustainable luxury with the support you deserve.
Why You'll Love It:
Hypoallergenic and gentle on sensitive skin, the breathable bamboo viscose fabric wicks away moisture, keeping you cool, dry, and confident from morning to night. The seamless waistband offers a snug, irritation-free fit that stays put without digging in, while the full coverage design provides a secure and supportive feel that moves with you.
Crafted with sustainable bamboo—a renewable resource that's kind to both your skin and the planet. Feel good about what you're wearing, inside and out.
Premium Features:
Fresh. Comfortable. Sustainable.
Invest in underwear that not only looks great but also aligns with your values. Our Capri Yellow SmoothFit Full Brief Underwear embodies our commitment to sustainability while delivering the comfort and coverage you can count on every single day.
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.
Enter your measurements to get a size recommendation.
Measure around your natural waistline.
We couldn't match that measurement. Check the size chart below.
We recommend size
Step One underwear is designed for comfort. If you are between sizes, we recommend sizing up.
Underwear so comfortable, you'll forget you're wearing it.
Our SmoothFit™ technology provides a completely seamless finish, meaning no visible lines and no digging in.
Designed for everyday wear, providing a soft touch against your skin while staying perfectly in place.
Naturally hypoallergenic bamboo viscose is gentle on sensitive skin and prevents irritation.

Trust Score 4.5/5
Compare our styles to find your perfect fit.

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