Closeout Special
Bamboo Boxer Briefs with LD Tech™ w/Fly and inseam 10cm
Bamboo boxer briefs with a fly, and a built-in barrier that keeps the last drop off your trousers.
Built-in LastDrop™ membrane stops wet spots before they reach your trousers
Horizontal fly for quick access, with the membrane running uninterrupted behind it
Feels like normal underwear. No bulk, no crinkle, nothing visible under trousers
Softer and cooler than cotton
Approved by over 5,000 men worldwide who know what they want.
Check our size chart to ensure perfect fit.
All sales final. No returns, no exchanges.
3 item minimum.
DESCRIPTION
Steen Luxury Bamboo Boxer Briefs with Fly and LastDrop Technology™
Most boxer briefs stop at "comfortable." These go one step further, with a discreet, built-in barrier that keeps the last drop exactly where it belongs, so you can get dressed once and forget about it. And now with a fly, so you don't have to pull the whole thing down.
The fly, without the compromise
Adding an opening to leakproof underwear is the part most brands get wrong. Ours is a horizontal fly, which opens with one hand and closes flat, and the LastDrop™ membrane runs uninterrupted behind it. You get the convenience of a fly with none of the protection traded away.
The last drop, handled
LastDrop Technology™ is a thin, breathable layer built into the front panel. It catches and locks away the moisture that ordinary underwear lets straight through. No wet spots, no second glance in the mirror, no changing trousers at two in the afternoon. You won't feel it's there. Neither will anyone else.
Bamboo viscose that feels like nothing at all
95% bamboo viscose, 5% elastane. Bamboo viscose is finer and smoother than cotton against the skin, and it moves moisture away from the body instead of holding it, which is also why these stay fresh through a long day. The elastane gives four-way stretch, so they move with you and snap back to shape wash after wash.
Details you'll notice by not noticing them
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Wide covered waistband that won't roll or dig in
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10 cm inseam that stays put, with no ride-up
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Contoured pouch for support without pressure
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OEKO-TEX® Standard 100 certified
The details
Material: 95% bamboo viscose, 5% elastane. LastDrop™ membrane: 100% TPU
Inseam: 10 cm
Colours: Black, Blue, White
Sizes: S to XXXXL.
Care: Machine wash at 30°C. Tumble dry low. Skip the fabric softener, since it coats the fibres and reduces absorbency. Don't iron over the membrane.
Start with one pair
Buy one, wear it for a week, and see how the rest of your drawer compares. Multipacks save up to 25%, free EU delivery on orders over €94, and 30 days to send them back.
CARE
Taking care of STEEN underwear is easy. Simply pop them in the washing machine with cool water and machine dry on normal or regular. After all, luxury is all about convenience.
RETURNS
📦 Shipping:
- Orders shipped within 24 hours
- Track your order in real-time
↩️ Returns & Exchanges:
- 30-day money-back guarantee, for unopened pouches
- Full refund or exchange, for unopened pouches
- Items must be unworn with protective seal intact and in the unopened pouche
Join 5,000 other happy customers

Discreet technology, maximum confidence

Designed for men on the move

Natural comfort with sustainable bamboo
Bamboo Boxer Briefs with LD Tech™ w/Fly and inseam 10cm
“Boyfriend loved it. Loved the fit, quality, and color. Definitely no drip!”
— Tiffani S.
“Best pair of underwear I have ever owned. Will buy more for sure.”
— Robert B.
“This is the softest underwear I’ve found. My husband loved it.”
— Kate R.
Dry & Dignified
LastDrop Technology™
Don’t let a little dribble dampen your day… or style. Whether it’s a recurring mishap or you’re simply in a rush, our cutting-edge LastDrop Technology™ protects you from embarrassing wet spots. STEEN luxury underwear for men feature a unique leakproof membrane that is discreet and feels like normal underwear.
The Royal Treatment
Bamboo Viscose
Throw away those thick, scratchy underwear that have lost their stretch. Made with bamboo viscose to create the most comfortable underwear for men, STEEN underwear are softer, cooler, and more durable than cotton. Bamboo viscose also offers moisture-wicking, odor-resistant, and antibacterial properties for a truly luxurious feel fit for your crown jewels.
Experience the Bamboo Difference
Thought I would give these a go. Comfortable and good quality.
For the past 20 years, I've worn almost exclusively one particular model of underwear from Schiesser. Over the years, I've tried countless other brands and styles, but none of them ever came close to the comfort I was used to. Until now! These are the first boxers I've found that are actually better than my old Schiesser underwear. I absolutely love the longer legs, although I honestly wouldn't mind if some models were even longer.
My biggest problem with most underwear has always been the pressure and discomfort around my testicles. This becomes especially uncomfortable when wearing slim-fit trousers. In fact, I had reached a point where I could only wear tight-fitting trousers for short periods, regardless of which underwear I tried.
Well, I received these boxers today, and I've spent the entire day wearing a pair of rather tight trousers. And I can hardly believe the difference!
It literally feels like I'm wearing nothing underneath! No pressure, no squeezing, no discomfort whatsoever. Just complete freedom and comfort.
They're absolutely extraordinary!
Heb hun maat aangehouden klopt van geen kanten!
Dus veel te groot ruilen niet mogelijk omdat ze afgeprijsd zijn en de boxer is niks!
Kortom niet kopen daar ze zijn ook nog agressief als je een mail stuurt
iI purchased the sale product which is a tad soze too big , but still meets my needs
Reviews in Other Languages
Bra kvalitet och passform.
Litet i minsta laget för att vara en XL.