92% bamboo boxer briefs so soft that you forget you have them on, cool and dry from morning to night.
So Soft You Forget Them
92% bamboo. No sharp fibres, no irritation.
Cool and Dry All Day
Bamboo breathes. Cotton does not. No trapped heat.
No Adjusting. No Bunching.
The waistband lies flat. Nothing rides up.
Still Like New a Year Later
Wash after wash. 365-day quality guarantee.
Couldn't load pickup availability
92% bamboo viscose, 8% spandex. 180 GSM.
Bamboo is naturally softer than cotton. The fibres are long, round and hollow rather than short and flat, so there are no sharp edges to rub against skin, no irritation and no scratching. That same hollow structure lets air move straight through the knit, which is why bamboo breathes in a way cotton simply cannot. You stay cool and dry at a desk, in the gym, on a long shift or on a hot commute.
The 8% spandex is there for recovery, not for squeeze. Enough stretch to move with you, enough memory to snap back into shape after every wash.
They also last. Men are still wearing their first pairs twelve months later, with the same softness, the same fit and the same shape after dozens of washes.
Available in Charcoal, Eucalyptus, Warm Sand, Navy and Slate. Sizes S to 3XL.
Our fit runs true to size. Order the size you normally wear.
Size Waist (in)
S 28–30
M 31–33
L 34–36
XL 37–40
2XL 41–44
3XL 45–48
If you land between two sizes, take the larger one. Bamboo has a soft stretch, so a slightly roomier fit sits better than a tight one.
The cut: 5 inch inseam, contoured front panel, 1.5 inch no-roll waistband, flatlock seams throughout and a gripless leg hem that stays down without pinching your thigh.
Still unsure? Drop us a message. We would rather take two minutes to help you get it right than have you guess. And if it still is not right when it arrives, exchanges are free.
Machine wash at 30°C with similar colours. Hang dry or tumble dry on low.
Skip the fabric softener. It coats the bamboo fibres and undoes the breathability that you paid for in the first place. Bamboo is naturally soft, it does not need help.
Wash inside out to protect the waistband print. Avoid bleach and avoid high heat drying, both shorten the life of the elastic.
Treated this way, they hold their shape, their softness and their colour well past a year.
Dispatched within 48 hours. Delivered in 7 to 10 days worldwide. Free shipping on every order, no minimum spend, tracking sent as soon as it leaves us.
365-day quality guarantee. If your boxers develop a quality issue within the first year, a hole, a seam giving way, elastic failing, anything that should not happen to a well made pair, we replace them. Just send us a photo and we sort it. No forms, no back and forth, and you do not need to return the old pair.
30-day returns on unopened packs. Free exchanges if the size is off.
A real person, any time. No bots and no ticket queues. Message us about sizing or your order and a human replies, usually the same day.
Count it tomorrow. The tug at your desk. The shift in the car. The pull when you stand up in a meeting. Most men do it forty times a day and have simply decided that is normal.
It is not normal. It is cheap fabric that never fit properly in the first place. BRIV sits differently. The bamboo knit moves the way skin does, the waistband stays exactly where you put it, and the fidget quietly disappears.
Cotton absorbs moisture and holds onto it. That is why a warm commute, a packed train or thirty minutes in the gym leaves you damp and staying damp for hours.
92% bamboo viscose works the opposite way. The fibre is naturally hollow, so air moves through it and moisture moves away from the skin instead of sitting against it. Temperature regulates. Freshness holds. Nothing sticks.
Men who buy BRIV are still wearing their first pairs a year later. Same softness, same shape, same fit after dozens of washes. That part we expected.
What we did not expect is how often partners quietly claim a pair. Then two. The 5 + 5 bundle gives you ten pairs in one order at the lowest price we do, which is enough to sort your drawer out properly and survive the theft.
Every pair in your drawer right now falls into one of these two columns.
Cotton fibres are flat, rough and absorbent. Bamboo fibres are smooth and hollow. That single structural difference is the whole story.
Short, uneven fibres with microscopic edges that rub against skin. Soaks up moisture and holds it there all day.
Long, round fibres with no sharp edges. Hollow structure lets air move through and pulls moisture away from the skin.
The best underwear is the pair you never think about.
As featured in
Verified buyer
Bought the five pack to try. Two weeks later I binned every other pair I owned and ordered the ten. That is not an exaggeration, I actually did that.
Verified buyer
I run four times a week and chafing was just something I dealt with. Ran a ten kilometre in these and felt nothing. Still cannot quite believe it.
Verified buyer
Ordered mine last spring and they have been through the wash at least fifty times. No stretching, no bobbling, no loose waistband. Same as day one.
Verified buyer
Most fabrics leave me itchy and red by the afternoon. These are the first pair I have worn where I genuinely feel nothing at all.
Verified buyer
Every other pair I own rolls over by mid morning. This one just sits flat and stays flat. Sounds small until you have gone a week without noticing it.
Verified buyer
Got the ten pack for my partner for his birthday. I now own two of them and have no plans to give them back. The softness is unreal.
Nobody buys underwear to impress anyone. You buy it because the last pair was falling apart. Then a week in, somebody else in the house says something.
It is not complicated. A pair that actually fits sits better, holds its shape and looks better on. You carry yourself differently when nothing is riding up. That is the part men do not expect, and it is the part partners notice first.
The most common thing men tell us is that they forget they are wearing them. Bamboo viscose has long, smooth fibres with no rough edges, so there is nothing to rub or irritate. Add flatlock seams and a waistband that lies flat and there is simply nothing left to notice.
Cotton fibres are short, flat and absorbent. They soak up moisture and hold it against your skin, which is why cotton feels damp and warm hours after you sweat. Bamboo viscose fibres are long, round and hollow, so air passes through and moisture moves away instead of sitting there. It is softer to start with and stays cooler through the day.
Our fit runs true to size, so order the size you normally wear. Use the size guide to check your waist measurement if you are unsure. If you land between two sizes, take the larger one. And if it still is not right when it arrives, exchanges are free.
Machine wash at 30°C with similar colours and hang or tumble dry on low. Skip fabric softener, it coats the fibres and undoes the breathability. Treated this way they keep their shape and softness well past a year.
Any quality issue within the first year. A seam giving way, a hole appearing, the elastic failing, anything that should not happen to a well made pair. Send us a photo and we replace them. You do not need to return the old pair and there is no back and forth.
Genuinely, yes. It comes up in our reviews more than any other single thing. Bamboo is soft enough that people who were not the intended owner start claiming pairs. It is the main reason we recommend the 5 + 5 bundle over the five pack.
Orders are dispatched within 48 hours and arrive in 7 to 10 days worldwide. Shipping is free on every order with no minimum spend, and you get tracking as soon as it leaves us.
Buy five, get five free. It is the lowest price we do, it fills the drawer properly, and it leaves you a spare or two for when they inevitably go missing.
