FLX vs Under Armour vs Greg Norman: Three 3XLT Polos, Measured
I own three polo shirts. Every one of them is labelled 3XLT. Same two letters, same number, three different brands — Under Armour, Kohl’s FLX, and Greg Norman.
I have worn and washed all three several times. I put a tape on all three as well. If tall sizing were a standard, the numbers would land on top of each other. They do not.
What three identical labels actually measure
| Body back | Body front | Chest flat (around) | Shoulder | Sleeve | Cuff | Placket | Fabric | |
|---|---|---|---|---|---|---|---|---|
| Greg Norman | 34 | 30 | 27.5 (55) | 23 | 11.5 | 8 | 7 | 90/10 poly-spandex |
| FLX | 33 | 30.5 | 27.5 (55) | 22.5 | 11 | 9 | 6.75 | 90/10 poly-spandex |
| Under Armour | 33 | 30.25 | 26 (52) | 21 | 11 | 9 | 6.5 | 100% polyester |
All three of these polos sit in The Tall Sizing Database, alongside every other garment I have measured — useful if you want to see how a 3XLT polo compares to a 3XLT sweater or jacket.
Read down the columns rather than across the rows and the pattern comes out immediately.
Length is the thing tall sizing gets right
Body length back runs 33, 33 and 34 inches. That is a one inch spread across three unrelated brands, and it is the tightest column in the table. Front length is tighter still at half an inch. Whatever else the industry disagrees about, it broadly agrees on what “tall” means vertically.
This surprised me. Length is the number I assumed would be all over the place, because length is the thing tall guys complain about. It is the one they have settled.
Width is where they part company
Shoulder runs 21 to 23 inches — a two inch spread. Chest runs 52 to 55 around — a three inch spread. That is not a rounding difference. Three inches of chest is the gap between a polo that skims and one that hangs.
The Under Armour is the narrow one by a distance: 21 inch shoulder, 52 inch chest. The FLX and the Greg Norman land together at 55 inches through the chest, a full three inches more. The Greg Norman is the broadest across the shoulder at 23 and the longest at 34.
So if you have worn one brand’s 3XLT and assumed the next one will fit the same, the tag is telling you about your height and saying nothing about your build.
None of the three has a side vent
I measured for side vents on all three and every one came back at zero — the side seam runs unbroken to the hem.
On a long torso that matters more than it sounds. A vent lets the front and back hem move independently when you sit or reach, which is most of what keeps a shirt tucked. Without one the whole hem travels together, and a tucked polo works its way out as a single sheet of fabric rather than gradually. If you are buying to tuck, the vent is worth looking for and none of these three have it.
The front-to-back drop
Every one of the three is cut longer at the back than the front — Greg Norman by 4 inches, Under Armour by 2.75, FLX by 2.5. That drop is deliberate and it is on your side: it covers the seat when you bend without adding bulk at the front.
It also means a single “length” figure on a size chart is describing only half the garment, and brands rarely say which half.
How they have held up
All three have been worn several times and through the wash, and all three have held up — no shrinking out of the length, no collar collapse, no pilling worth reporting. On a category where the usual failure is a hem that creeps up after three washes, that is worth saying plainly.
The FLX is the softest of the three by a clear margin. It ties the Greg Norman for the widest chest at 55 inches around, so of those two it is the more forgiving on a fuller build without the Greg Norman’s extra shoulder. It is a Kohl’s house brand and I have not found it anywhere else, so there is no link for it here — you buy it in store or on their site.
The two you can buy online
The Tall Take
Under Armour Tech Polo
Verdict: The trim one. Buy it if you want a polo that follows you rather than hangs.
Fit at 6’8″, 285 lb: 3XLT gives the full 33 inches of body length, but the narrowest cut here — 52 inch chest and a 21 inch shoulder.
Measured: Body 33 in · Chest 52 in around · Shoulder 21 in · 100% polyester · No side vent
Price changes often — check the current price on Amazon. As an Amazon Associate I earn from qualifying purchases.
The Tall Take
Greg Norman Polo
Verdict: The longest and broadest. Buy it if you carry width across the back.
Fit at 6’8″, 285 lb: 3XLT and the biggest garment of the three — 34 inch body, 23 inch shoulder, 55 inch chest. Longest back drop at 4 inches.
Measured: Body 34 in · Chest 55 in around · Shoulder 23 in · 90/10 poly-spandex · No side vent
Price changes often — check the current price on Amazon. As an Amazon Associate I earn from qualifying purchases.
What I would actually tell you
Buy tall for the length, because tall sizing is reliable there. Do not buy tall expecting a predictable fit through the chest and shoulder, because across these three it varies by two to three inches on identical labels.
Measure a polo you already own and like across the shoulder, then shop that number. It is the single measurement that separated these three most clearly, and it is almost never published.
More on why sizing up is not the same as sizing tall: tall sizing vs sizing up. For the same argument on trousers: what height is a 36 inch inseam.
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