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BioTracker Men's Boxer Trunk

$31.93

$35.93

Any 4 undies or socks for 5% off.
Any 8 undies or socks for 10% off.
Any 15 undies or socks for 20% off.

Discount applies at checkout.
All packs excluded.

Black

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A seamless Men's Boxer Trunk made from super fine modal and RegSilk Protein™ Fibre. Engineered with Paire's trademarked NudeTech™ and BioTracker feature for superior hygiene. Super antibacterial, and soft on the skin.

Body: 88% Super Fine Modal (Tree Fibre), 12% Spandex. Gusset: 95% RegSilk Protein™ Fibre (85% Super Fine Modal, 10% Mulberry Silk), 5% Spandex.

Pay off your Paire in a few weeks by selecting ‘Afterpay’ at checkout.

We’ll foot the bill on shipping for domestic orders over A$100. Free worldwide shipping over A$200.

No questions asked. No shipping costs. We've all ordered things online but sometimes they just don't feel right. At Paire, if you have got the wrong size or just don't feel good, you have full 100 days to return it for a full refund.

Size Chart -

	SML	MED	LRG
AU	W 4-7	W 8-11 M 5-8	M 9+
US	W 4-7	W 8-11 M 7-9	M 10+
EU	34-38	39-42	43+

Half size? We suggest sizing up.

	XXS	XS	S
AU	07-010	011-2	2.5-4
US	08-011	012-3	3.5-5
EU	24-28	29-33	34-38

Half size? We suggest sizing up.

	SML	MED	LRG
AU	W 4-6	W 7-10 M 5-7 W 7-10 M 5-7	W 11+ M 8+ W 11+ M 8+
US	W 4-6	W 7-10 M 7-9 W 7-10 M 7-8	W 11+ M 9+ W 11+ M 9+
EU	34-37	38-41	42+

Half size? We suggest sizing up.

	XXS	XS	S	M	L	XL	XXL
Height (CM)	155-160	160-170	170-175	175-180	180-185	185+	185+
Chest (CM)	78-84	80-88	88-96	96-104	104-112	112-120	120-128
Waist (CM)	-	66-72	68-76	76-84	84-92	92-100	100-108
Body length (CM)	62	64	67	70	73	75.5	77
Shoulder width (CM)	40	41.5	43	44.5	46.5	48.5	54

Half size? We suggest sizing up.

	S	M	L	XL	2XL	3XL
AU	6-8	10-12	14-16	18	20	22-24
Hips (CM)	87-95	96-104	105-110	111-116	117-122	123-128
Waist (CM)	62-70	71-77	78-83	84-89	90-97	98-103

Half size? We suggest sizing up.

	S	M	L	XL	2XL	3XL
Waist (INCH)	27-30	30-33	33-36	36-39	39-42	42-45
Side length (CM)	27	29	31	33	34.5	34.5

Half size? We suggest sizing up.

	XS	S	M	L	XL	XXL
Waist (IN)	25	27	29	31	34	36

Half size? We suggest sizing up.

	XS	S	M	L	XL	XXL
Chest (CM)	80-87	87-92	92-97	97-102	102-107	107-112
Hip Circumference (CM)	90-95	95-100	100-105	105-110	110-115	115-120

Half size? We suggest sizing down.

	XS	S	M	L	XL	XXL
Waist (CM)	62-67	67-72	72-77	77-82	82-87	87-92
Hip Circumference (CM)	90-95	95-100	100-105	105-110	110-115	115-120

Half size? We suggest sizing down.

	S	M	L	XL
AU	6	8-10	12-14	16
Bust (CM)	76-81	82-89	90-97	98-102
Waist (CM)	64-70	71-77	78-83	84-89
Hips (CM)	83-88	89-96	97-104	105-110

Size up for a looser fit.

	S	M	L	XL
AU	6-8	10	12	14
Chest (CM)	84-88	89-93	94-98	99-104
Waist (CM)	68-71	72-76	77-81	82-87
Low Hip (CM)	90-94	95-99	100-104	105-110

Size up for a looser fit.

	S	M	L	XL
Chest (CM)	92-96	97-101	102-106	107-112
Waist (CM)	79-83	84-88	89-94	95-101
Low Hip (CM)	92-96	97-100	101-105	106-111

Size up for a looser fit.

	XS	S	M	L	XL	2XL
AU	6	8	10	12	14-16	18-20
Chest (CM)	80-85	87-92	93-98	99-104	105-113	114-122
Waist (CM)	61-66	67-73	74-79	80-88	89-97	98-106
Hip (CM)	88-93	94-99	100-106	107-112	113-121	122-130

The fabric is extremely stretchy and fits across sizes.

	XS	S	M	L	XL	2XL
AU	4-6	8	10-12	14	16-18	20-22

The fabric is extremely stretchy and fits across sizes.

	XS	S	M	L	XL	2XL
AU	6-8	10	12	14	16	18
Bust (CM)	80-87	87-92	92-97	97-102	102-107	107-112
Underbust (CM)	63-67	68-72	73-77	78-82	83-87	88-92

Half size? We suggest sizing down.

	XS	S	M	L	XL	2XL
AU	6-8	10	12	14	16	18
Waist (CM)	62-67	67-72	72-77	77-82	82-87	87-92
Hip (CM)	90-95	95-100	100-105	105-110	110-115	115-120

Half size? We suggest sizing down.

	S	M	L
Underbust (CM)	68-77	78-82	83-87
AU size	10-12	14	16
US/UK size	33-34	36	38
EU size	70-75	80	85

Half size? We suggest sizing up.

	S	M	L	XL	2XL	3XL
Waist (INCH)	27-30	30-33	33-36	36-39	39-42	42-45
Side length (CM)	27	29	31	33	34.5	34.5

Half size? We suggest sizing up.

Super-soft tree fibres

Anti-smell & antimicrobial

RegSilk™ fibres stop bacteria from building up.

Never sweaty, always breezy

And refuses to reveal itself under tight pants.

This is not your ordinary brief. Made with fancy things like our sustainable silk and signature squat-proof technology. So you can feel things like the perfect amount of stretch, without ever sagging, bending, or snapping.

Our trademarked NudeTech™ gives your briefs that special touch. Made from plant-based Modal, it’s what makes them feel like a second skin—like you’re wearing nothing at all.

Made with RegSilk™—our regenerated silk cocoon protein fibres—which has antibacterial and anti-smell properties to keep your most sensitive bits happy and to stop bacteria from building up. The world’s first Pilates-proof panties. Thrush? Don’t know her.

Not sure how old your underwear is?

With busy lives and schedules, most of us aren’t keeping tabs on when we last spruced up our drawers. So consider these undies your reminder app — their handy tracker changes colour with wear and time so you can see how long they’ve been in rotation for.

Designed with active proteins that sense external stimuli, BioTracker™ lets you decide when it’s time for a refresh.

Great boxer trunks for travelling

I bought a number of very lightweight boxer trunks for travel to Europe and the UK/Ireland. Besides the fact that they don’t take up much space in the suitcase and are lightweight, they are easily hand washed and dry quickly so are ideal for travel with. They are also very comfortable and breathable so are nice to wear

Nice, but…

These are really well made, and the material is so soft, but they are cut too tight in the leg, so I don’t find them comfortable. I’m disappointed, because they would otherwise have been great.

My husband loves these

Not bad

Nice undies but prefer the on the go trunk as it’s more comfortable

Best pair of underwear I own

As an American of Asian descent, I was looking for ways to support non-US businesses as a result of current events. Imagine my surprise when I discovered this company. Not only do they produce quality products, but their values align with mine also!

Particularly, the underwear I purchased fits just right. Snug enough to keep everything where they’re supposed to be, and breathable enough to wear them comfortably all day in warm weather.

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BioTracker Men's Boxer Trunk

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You're in! We'll let you know when it's back.