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She always gives her best, time for you to do the same.

Take a look

10,000+ men upgraded

4.7/5 Trustpilot

She coordinates an outfit every morning.
You haven't bought new underwear in years.

The garment you wear the most gets the least attention.

What women actually think

★★★★★

"He used to wear grey stretched-out boxers from the supermarket. Now I actually notice. Big difference."

Margot

★★★★★

"The difference is insane. He looks so much more put together. Why did it take this long."

Roos

★★★★★

"I made him throw out his old ones the same night. Genuinely embarrassing what men wear under their clothes."

Fleur

★★★★★

"His old underwear was genuinely horrifying. I don't know how men walk around like that and feel fine."

Isolde

★★★★★

"I don't usually notice underwear. I noticed these. That says everything."

Noor

★★★★★

"Finally a man who wears something that actually looks good. It sounds small but it really isn't."

Sanne

★★★★★

"I used to think underwear was underwear. Then I saw what he was wearing and understood immediately."

Lotte

★★★★★

"Every man I know wears the same sad grey boxers. This is so refreshing. He actually looks good."

Fien

★★★★★

"Details matter. Women know this. Apparently Son of John does too."

Vera

Why Son of John boxers are the best.

100% organic shirt-grade cotton

The same double-100 cloth John Crocket has been cutting shirts from for 30 years — thin, silky, and tested externally for every variant.

No itchy inside labels

We moved the tag from the middle of the back to the left leg. All the comfort, none of the itch.

Woven-in waistband

The elastic is woven into the fabric, not stitched on top. It can't twist, because there's nothing to twist.

Wide freedom, sleek fit

The comfort of a loose fit that still sits flat under slim trousers. Best of both.

1-year worldwide warranty

We're so confident in the quality that we back every pair with a quality warranty, wherever you are.

Find your perfect one.

SS'26

Olivia and Philip for Son of John.

Create your perfect bundle.

The more you buy, the cheaper it gets. Create your own pack, mix sizes, and enjoy discounts.

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Some men notice the difference. All women do. Time to upgrade.

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