Measurements based on size X is a size-and-fit attribute Bloomingdale's collects for items in its Maternity bottoms department. It carries one garment measurement together with the size it was taken on, so a shopper can judge length before ordering. The field is optional in the Bloomingdale's schema and appears on the product page. Unlike most feature bullets, Bloomingdale's stores it at the SKU level, so each size of the style has its own copy of the value.
The rules
| Rule | Value |
|---|---|
| Required | No |
| Level | Variant (each SKU carries a value) |
| Maximum length | 254 characters including spaces |
| Format | One phrase, no trailing period |
| Content | The measurement, the point it was measured from, and the base size |
| Never write | "TK", a placeholder, or a measurement with no size |
The phrase always starts with "Approx." and ends with "based on a size Y", where Y is the size the sample was measured on. Bloomingdale's shares the attribute across apparel departments, and its two exact forms are written for tops and one-pieces: "Approx. X" from back of neck to hem, based on a size Y" for jackets, coats, dresses and jumpsuits, and "Approx. X" from high point shoulder to hem, based on a size Y" for tops, tees, blouses and sweaters.
Maternity bottoms
For pants, jeans, leggings and skirts in the Maternity bottoms department, the length that matters is the inseam or the skirt length rather than a shoulder-to-hem measure. Osello's recommendation is to keep the same pattern and swap the reference point: "Approx. 29" inseam, based on a size M" or "Approx. 24" from waist to hem, based on a size S". Take the measurement from your size chart or spec sheet, name the size you measured, and keep "Approx." in front of the number. Maternity waistbands stretch and sit differently across pregnancy, so measure the leg or skirt length, which stays stable, rather than the waist.
Examples
| Value | Verdict | Reason |
|---|---|---|
| Approx. 29" inseam, based on a size M | Good | Measurement, reference point and base size |
| Approx. 24" from waist to hem, based on a size S | Good | Right form for a maternity skirt |
| 29 inches | Weak | No reference point, no base size, no "Approx." |
| Approx. 29" inseam, based on a size TK | Weak | Placeholder where the size should be |
| Inseam varies by size | Weak | Says nothing measurable |
Common mistakes
- Leaving the "based on a size Y" part off. The number means little without the size it was measured on.
- Writing a range across sizes. One measurement on one named size is the format.
- Dropping "Approx." because the number came from a spec sheet. The label stays.
- Measuring the waistband on a maternity panel. Use the inseam or the length.
How Osello fills this field
Osello fills this optional text field at the variant level, so every SKU of the style receives a value. It looks for a measurement in the source data or size chart first; when neither exists it estimates from the garment category and silhouette and keeps the "Approx." label. The phrase is written with the base size named, and Osello never writes "TK" or leaves apparel blank. Because the source measurement is usually taken on one sample size, the same phrase is used for each size of the style unless your data provides per-size measurements. You can steer the reference point and base size with custom instructions. Other Bloomingdale's size-and-fit attributes are listed in the Bloomingdale's field directory.
Frequently asked questions
Which measurement do I give for maternity pants?
The inseam, measured on one sample size: "Approx. 29" inseam, based on a size M". For a maternity skirt, give the length from waist to hem instead.
Do I need a different value for every size?
The field is stored per SKU, so every size carries a value, but the standard Bloomingdale's phrase describes one sample size. Use the same phrase for every size unless your spec sheet gives per-size measurements you trust.
What if I have no measurements at all?
Estimate from the garment type and silhouette and keep "Approx." in front of the number. A placeholder such as "TK" is never acceptable.
Is the field required?
No. Bloomingdale's lists it as optional for Maternity bottoms, but a length measurement is one of the details shoppers look for on bottoms, so fill it whenever you can.