Fit vocabulary is doing a lot of quiet work on product pages. Most of it is genuinely descriptive; some of it is a polite way of saying something you would want to know.

Here is what the common terms mean in practice.

Terms about width

Slim. Narrow through the body with a defined waist or a close cut at the sides. On a shirt it usually means darts at the back. Slim is about shape, not size — a slim garment can still be generous in length.

Regular / classic. Roughly parallel from chest to hem, with a little ease. This is the default and it is the safest choice when you cannot try something on.

Relaxed. Wider than regular through the body, usually with a dropped shoulder, but still following the general shape of a person. Relaxed is a comfortable middle ground.

Boxy. The one worth understanding properly. Boxy means the width is roughly the same at the chest and the hem, with no shaping in between, and it is almost always paired with a shorter body length. It reads as deliberate on some people and as a shrunken square on others. If you are longer in the torso, boxy is the term to be most careful with.

Oversized. Deliberately several sizes larger in the cut, with a heavily dropped shoulder seam and a long body. Not the same as boxy — oversized keeps length, boxy does not.

Terms about length

Cropped. Shorter than standard, but the reference point varies wildly. Cropped trousers might end anywhere from above the ankle to mid-calf. Cropped knitwear might sit at the natural waist or above it. This word tells you almost nothing on its own — go to the measurements.

Longline. Extended below the standard hem, usually past the hip.

Midi, maxi, mini. Roughly below the knee to mid-calf, ankle or floor, and above the knee. These are fairly reliable, though midi covers a wide range and the difference between the top and bottom of that range is substantial on a shorter frame.

Terms about the shoulder

This is the one most people ignore and it matters more than the rest.

Set-in shoulder. The seam sits at the edge of your actual shoulder. This is standard tailoring and it is the most structured, most formal option.

Dropped shoulder. The seam sits down the upper arm. Casual, relaxed, and much more forgiving of size differences — which is exactly why it turns up on nearly everything relaxed or oversized.

Raglan. The sleeve runs in a diagonal to the neckline with no shoulder seam at all. Sporty, and the most forgiving of a broad or narrow shoulder.

If a garment does not fit and you cannot work out why, the shoulder is usually the answer. It is also the hardest thing to alter, which makes it the thing worth checking first.

The euphemisms

A few terms carry information the description is not stating outright.

  • "Effortless" or "easy" — loose, with very little shaping. Often lovely, occasionally shapeless.
  • "Sits away from the body" — will not skim your shape. Useful if you want that, a surprise if you did not.
  • "One size" — cut generously and shaped for nobody in particular. Fine for a scarf, risky for anything structured.
  • "Model wears size S and is 5'10" — the standard photograph is on a tall, narrow frame. Everything looks longer and more fluid there than it will on most people. This is the most useful line on the page and the most ignored.

Read the measurements instead

Fit words are shorthand. The measurements are the fact.

The single most useful habit: pick something you already own that fits the way you want, lay it flat, and measure it. Chest or bust across, length from the shoulder seam to the hem, sleeve from shoulder seam to cuff. Write the three numbers down.

Then compare those to the garment measurements rather than to the size label. Sizing is inconsistent between retailers and largely meaningless across them; a flat measurement is not.

Why this matters when buying for less

When you are looking for the same shape at a friendlier price, the fit description is where two similar-looking garments quietly diverge. The same photograph can be a boxy crop on one site and a regular-fit longline on another, and the difference will not be obvious until it arrives.

DUPI includes fit notes on the finds it returns for exactly this reason — the closest match on shape is not always the closest match on the photograph. Buying shoes online without trying them on covers the same problem where it is hardest.