Michael Clarkewears Step One.

Shop Michael’s kit Why he switched

Five reasons people don’t go back to cotton.

Hand resting on the bamboo fabric of Step One boxer briefs

Soft from the first wear.

The fabric is organically grown bamboo viscose: smooth, cool against the skin and lighter than cotton, with a natural drape that cotton never quite gets.

There is no breaking-in period. The pair you put on this morning feels the same as the pair you have washed fifty times.

Side view of Step One boxer briefs showing the inner-thigh panel

Stays where you put it.

Ultraglyde™ panels on the inner thigh are friction-resistant, so skin no longer rubs on skin and the leg stops riding up when you walk, sit or run.

The waistband holds without digging in. Pull them on, forget about them, no adjusting at the lights.

Front view of Step One boxer briefs showing the 3D Comfort Pouch

Supported all day.

The 3D Comfort Pouch is shaped, not flat. It keeps everything separated and supported, with room where you need it and none where you don’t.

Three fits, one pouch: boxer brief, trunk, or boxer brief with a fly.

Man relaxed in Step One boxer briefs

Dry when it’s hot.

Bamboo viscose is moisture wicking: it pulls sweat off your skin and lets it evaporate, so you stay dry through a humid summer day, a long flight or a hard session.

Less moisture means less odour and less chafe. The three problems cotton gives you on a hot day, gone.

Step One crew socks in white with sneakers

Socks built the same way.

360° arch support holds the sock to your foot, a reinforced heel and toe take the wear, and a stay-put silicone grip means no slipping down inside the shoe.

Sweat-wicking too, so feet stay dry. Crew, ankle or no-show: whichever you wear, they stay where you put them.

The kit he wears

Michael’s kit.

Michael Clarke

Choose your pack

Pick your sizes

1

  • Free Shipping
  • 30-Day Guarantee
  • Ridiculously soft bambooBamboo viscose blend that feels luxurious from the first wear.
  • Anti-chafe Ultraglyde™ panelsFriction-resistant panels stop chafing and ride-up, all day.
  • 3D Comfort PouchAnatomically designed pouch keeps everything separated and supported.
  • 360° arch supportA support band hugs the arch for a secure, custom-feel fit.

Michael Clarke, in his own words.

The underwear brand that changed the game.

  • 26M+Pairs sold
  • 65K+5-star reviews
  • 2M+Happy customers
  • 100+Elite athletes

4.8

What customers say about Step One
30 Days

First Pair Guarantee

Love your first pair or it’s free. Not convinced? Keep it and we’ll refund you in full.

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  • No questions asked
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Frequently asked questions

What are Step One undies made of?

High-quality, organically grown bamboo viscose. It's incredibly soft, breathable and moisture-wicking, keeping you cool and dry all day long.

Boxer Brief or Trunk?

The only difference is leg length: Boxer Briefs have 3 cm more than Trunks. Boxer Briefs usually suit guys with thicker legs, Trunks guys with thinner legs. Michael wears the Boxer Brief.

How does the Ultraglyde™ panel work?

The Ultraglyde™ panels are friction-resistant panels on the inner thighs that prevent chafing and stop the legs from riding up. Your legs glide past each other rather than rubbing.

How do the socks fit?

Unisex sizing from XS to XL, in black or white. A 360° arch band and a non-slip silicone grip keep them in place, with a reinforced heel and toe for the long haul.

How do the packs work?

Each pack bundles undies and socks at one price. Pick a size for every item in the pack; the sizes can differ, and each one is shown on the pack card as you choose.

How does the First Pair Guarantee work?

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.

How should I wash them?

Machine wash cold with like colours. Tumble dry low or line dry in the shade. Do not bleach, iron or dry clean.