Underwear for Tall Men: 11 Pairs Measured, and the Rise Is Not the Number

Seven cuts of underwear drawn flat - brief, bikini brief, trunk, boxer brief, boxer, jockstrap and thong
Seven cuts of underwear drawn flat - brief, bikini brief, trunk, boxer brief, boxer, jockstrap and thong
Seven cuts drawn flat No photographs the shapes are the point not the model

I own a lot of underwear. Eleven pairs of it are now taped, flat and unstretched, on a hard table, at 6 foot 8 and 285 pounds. Nothing here is off a spec sheet.

The category is sold on waist girth and almost nothing else. Nobody publishes a rise, nobody publishes an inseam, and the label size is close to meaningless — across these eleven garments, the same body wears everything from an XL to a 4XL.

Two things came out of the tape that I did not expect, and the second one is the reason this page exists.

The briefs

GarmentCutLabel sizeWaistband flat → stretchedFront riseBack riseWhere it sits on meDo I reach for it?
Jack Adams Air knit briefbikini briefXL15.0″ → 18.0″8.0″12.0″Below the naval – high cut waistbandWear them during the summer months
Box Menswear Prince Fit – Meshbrief2XL17.0″ → 18.5″10.25″11.0″Below the navalRiske undies – see thru
MeUndies Briefsbrief2X17.0″ → 18.5″10.5″12.0″At NavalNot really
Jockey BriefsbriefXXL18.5″ → 21.0″13.0″11.5″NavalNot really
Real Men Air mesh bikini briefbikini briefXXL – C POUCH17.0″ → 18.0″8.5″13.0″Below navalAll the time
Real Men Modal Bikini Briefbikini briefXXL – C POUCH14.0″ → 19.0″6.5″10.75″Below NavalAll the time
Kumori BriefsbriefXXL17.0″ → 19.5″11.0″11.5″Below NavalAll the time
Taped flat and unstretched by me, 6 foot 8. The last column is honest rather than flattering.

Finding one: the flat measurement tells you very little

Look at the two Real Men briefs. The Air mesh measures 17″ flat and stretches to 18″ — one inch of give. The Modal measures 14″ flat and stretches to 19″ — five inches. Same brand, same label size, same body. One of them is three inches smaller on the table and ends up an inch bigger on.

Why a flat tape reads the same across a contoured pouch and a flat trunk front
Why the tape lies A contoured pouch and a flat trunk front read the same across the tape and hold the body completely differently

If you buy underwear by the flat waistband figure, or by the number on the packet, you are reading the wrong number. The stretched figure is the one you wear.

Finding two: front rise is not what decides it

This is the one I did not see coming. I expected a long torso to want more rise. The tape says the opposite, and more precisely, it says rise is not the number at all.

GarmentFront riseWhere it sits on meDo I reach for it?
Jockey brief13.0″At the navelNot really
MeUndies brief10.5″At the navelNot really
Kumori brief11.0″Below the navelAll the time
Real Men Air mesh bikini8.5″Below the navelAll the time
Real Men Modal bikini6.5″Below the navelAll the time
Every pair that sits below my navel gets worn. Both pairs that sit at it do not.

The cleanest pair in the set is the Kumori against the MeUndies. Half an inch apart in front rise — 11.0 against 10.5 — and they behave like different garments. The Kumori sits below the navel and I wear it constantly. The MeUndies sits at the navel and I do not pick it up.

Front rise is a measurement of the garment. Where it sits is a measurement of the garment on you.

I cannot fully explain the half inch from the tape alone, and I am not going to pretend I can. The waistband heights are close (1.0″ against 1.25″) and the pouch widths are identical. What the numbers do say, clearly, is that the Jockey — the highest front rise in the set at 13″ — is the one I never wear, and the lowest at 6.5″ is one of the two I wear most.

On a long torso, ‘at the navel’ is a different place than it is on the model in the photograph. That is the whole problem with this category, and no size chart has ever addressed it.

The boxers and trunks

GarmentCutLabel sizeWaistband flatFront riseBack riseInseamLeg opening flat → stretchedWhere the leg landsDo I reach for it?
Under Armour Performance boxerboxer brief3XL18.5″10.0″11.5″5.0″9.25″ → 14.0″Mid-high thighDurring the winter
Under Armour Essential techTrunk3XL18.75″10.5″12.0″2.0″11.0″ → 13.0″Almost crotchyes
Box MenswearTrunk3XL18.25″10.0″13.0″1.75″10.5″ → 13.5″Almost crotchyes
Real MenTrunk4XL-C POUCH17.5″9.0″9.0″2.0″11.0″ → 14.0″Almost crotchYes
The inseam column is the one nobody prints, and it separates these cuts more than the names do.

‘Trunk’ and ‘boxer brief’ are three inches apart

Three of these four are sold as trunks and they are remarkably consistent: 1.75″ to 2.0″ of inseam, all landing just below the crotch. The Under Armour Performance, sold as a boxer brief, has a 5″ inseam and lands at mid to high thigh.

A drawn figure at six foot eight with each underwear cut marked on the leg - brief no leg, trunk two inches, boxer brief five inches, none reaching the knee
Every leg length off my own tape The longest pair in the drawer has a five inch leg

Same brand, same 3XL label, two cuts: the 5″ Performance is a winter garment for me and the 2″ Essential Tech is one I wear all year. Three inches of leg is the entire difference, and neither name tells you that.

One oddity worth recording: the Real Men trunk is the only garment in the set with no rise differential at all — 9″ front and 9″ back. Everything else in the eleven has a back rise taller than its front. It still gets worn.

What I would tell a tall guy buying underwear

  • Ignore the label size. The same body here wears an XL and a 4XL. It carries no information between brands.
  • Read the stretched waistband, not the flat one. A 14″ waistband and a 17″ waistband from the same brand both land near 19″ worn.
  • Front rise will not tell you where it sits. Two briefs half an inch apart sat in different places on me and got opposite verdicts.
  • For boxers, the inseam is the spec. Trunk means about 2″ here and boxer brief means about 5″. The name is not the measurement.

What to measure on a pair you already own

Lay a pair you actually reach for flat and unstretched, and take four numbers: waistband edge to edge, then the same waistband pulled to where you would really wear it, the front rise from the top of the waistband down to the crotch seam, and — if it has legs — the inseam. Then note in plain words where the waistband sits on you.

Put those into the Fit Finder and see which of the garments I have taped match the one that already works. Everything measured on this site is listed in the tall sizing database.

What is not here yet

Eleven garments, not twelve — the Kumori short boxer is not taped yet, which is the one pair that would have given a clean brief-against-short-boxer comparison inside a single brand. I also have not yet recorded how far off the floor each leg hem lands, standing, which is the figure I most want and the one nobody publishes. Both will be added here rather than written up somewhere else.

No affiliate links on this page. I bought all of these myself.

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