Excellent 4.7 9,343 Reviews

Up to 50% OFF

BLACK FRIDAY DEALS

1,200,000+ items sold

1,200,000+ items sold

Perfect Fit Promise Hole Free Warranty* 30-Day Comfort Trial

Black Friday Deals

The TENCEL™ basics trusted by 100,000+ men. Now with exclusive Black Friday savings. Your moment to upgrade.

4+2 Free - Comfort Boxer Briefs 2.0 SALE

4+2 Free - Comfort Boxer Briefs 2.0

£47.63£73.11
2+1 Free - Undershirts SALE

2+1 Free - Undershirts

£42.53£63.79
4+2 Free - Active Boxer Briefs SALE

4+2 Free - Active Boxer Briefs

£56.11£85.05
2+1 Free - Classic T-shirts SALE

2+1 Free - Classic T-shirts

£51.03£76.55
4+2 Free - Regular Briefs SALE

4+2 Free - Regular Briefs

£47.63£71.42
4+2 Free - Regular Socks SALE

4+2 Free - Regular Socks

£22.11£33.13

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NEW
Classic T-shirt

Fitted across the chest and shoulders. Comfortable around the midsection. The ultimate everyday T-shirt.

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Made with TENCEL™

Everyday comfort, made better.

Breathable & Temperature-Regulating

Releases heat and moisture to keep you comfortable.

2× more breathable than cotton

Moisture-Wicking

Wicks away moisture and dries faster than cotton.

50% more moisture absorption

Silky Soft on Skin

Longer fibres, less friction. Hypoallergenic.

Less chance of irritation

Keeps Its Shape

Retains its shape and colour, wash after wash.

100+ washes without losing shape

Excellent

Rated 4.8 / 5 based on 9,343 reviews on Trustpilot
5 / 5

their socks are very good quality. they are my favorite ones to wear. the nickers are also of good quality. already bought a second set of both.

W Verwijs
5 / 5

The quality is amazing, feels extremely soft and very absorbant

ilias
5 / 5

Best underwear I have ever owned and it's been about two weeks now and the verdict stays the same. Quality is unmatched.

Rodger Schirmer
5 / 5

The underwear is superb quality. Comfortable wearing.

Wim
5 / 5

Before I knew, customer service notified me that I've order a small size.

D.P . Lobato
5 / 5

She also asked if they could still help me with a nice gift and helped me within 2 days.

Roger Tjon Kie Sim
5 / 5

After that they send me a new item of the old version and they fit perfect

Bram Van De Gevel
5 / 5

Quick communication on slight delay in delivery

Tom Gambrah
5 / 5

Didn't believe it but tried it anyway. And man i was wrong. Even with running they stay in place!

joris
5 / 5

The boxers are feeling great, i have the feeling that i don't wear any at all. Also great for wearing them to the gym.

klant
5 / 5

the first boxershorts he can wear all day long without having any irritation by the end of the day. He works 12-14 hours a day

Maud
5 / 5

I was amazed that you barely can feel the underwear. No more sweating. Proud to say I bought 6 more

Devano Weber
5 / 5

More than enough stretch. Fits perfect. Dries quickly.

Luc Bogaerts
5 / 5

Great price for the quality of the fabric.

Rick
5 / 5

Great fit even greater fabrics, feels so good, for a very reasonable price!

Francisco
5 / 5

Fantastic product, especially at the price. Bought 3 initially to test, will be going back for more.

Andy D
5 / 5

Fast delivery, good price, and good quality.

Robin

Your order does more than just arriveYour purchase has more impact than you think

This is what KHAIZEN Underwear customers have achieved since 2024.

1,118.072 tonnes

Of CO₂ offset

4.201 million

Miles of driving in an average car offset

28

Months Earth Positive, without interruption

VIEW YOUR IMPACT
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