Sizing Information is a required fit attribute on Bloomingdale's Marketplace for the women's tops department. It tells the shopper how the top runs against its size label, and Bloomingdale's shows it as a fit bullet on the product page, where it sits next to the size selector and the size chart. The value has to be one of Bloomingdale's exact phrases: "Fits small, order one size up", "Fits large, order one size down" or "Fits true to size, order your normal size". A listing in this department cannot be submitted without it.
Bloomingdale's Marketplace runs on Mirakl and shares its attribute definitions with Macy's. Each apparel department has its own copy of the field, so the phrase you pick here applies to women's tops only. Dresses use Sizing Information, bottoms use Sizing Information and outerwear uses Sizing Information. The bras department carries an optional version, Sizing Information (Sports Bras only), that is filled only for sports bras.
The rules
| Rule | Detail |
|---|---|
| Required | Yes |
| Level | Parent listing, one value for every color and size |
| Length | Up to 254 characters, spaces included |
| Format | One phrase, no trailing period |
| Allowed values | Bloomingdale's exact phrases, listed below |
| Phrase | Use it when |
|---|---|
| Fits small, order one size up | The top runs tight: fitted, structured, non-stretch or bodycon cuts, or the brand's fit notes say to size up |
| Fits large, order one size down | The top runs roomy: oversized, boxy or relaxed cuts, or the brand's fit notes say to size down |
| Fits true to size, order your normal size | The top matches the size label, or nothing in the source suggests otherwise |
The value is a fit judgment about the whole style, so it is set once on the parent listing and shared by every color and size. Model size, garment measurements and body measurements do not belong here. Bloomingdale's other fit and dimension fields hold those, and the Size Chart Image carries the full chart.
Choosing the phrase
Start with what the brand already says. A fit note such as "runs small, we recommend sizing up" maps directly to "Fits small, order one size up", and "true to size" maps to the true-to-size phrase. Customer reviews that report a consistent fit complaint are a reasonable second source when your own fit notes are silent.
When the source gives no guidance, the silhouette and fabric decide. A fitted, structured or non-stretch top, a bodycon knit or a corset-style bodice generally runs small. An oversized, boxy, drop-shoulder or relaxed top generally runs large. Everything else, which is most tops, is "Fits true to size, order your normal size", and that phrase is the default when nothing points elsewhere.
Examples
| Top | Value | Verdict |
|---|---|---|
| Slim ribbed turtleneck, non-stretch, brand says size up | Fits small, order one size up | Good: follows the brand's fit note |
| Oversized boyfriend button-down | Fits large, order one size down | Good: the silhouette runs roomy |
| Classic cotton crewneck T-shirt | Fits true to size, order your normal size | Good: the default for a standard fit |
| Bodycon stretch bodysuit with fit notes saying true to size | Fits true to size, order your normal size | Good: the brand's guidance beats the silhouette rule |
| Fitted blouse with a "size up" note | Runs a bit small, size up if between sizes | Weak: not one of the exact phrases |
| Relaxed linen shirt | Fits true to size. Model is 5'9" and wears a size S | Weak: adds model size and a period |
| Ribbed tank | True to size | Weak: shortened, and not the exact phrase |
Common mistakes
- Paraphrasing the phrase. Bloomingdale's wants the exact wording, including the ordering advice after the comma.
- Adding a trailing period or a second sentence about the model. The field is one phrase.
- Setting a different value per colorway. Fit is a property of the style, and the bullet is shared.
- Leaving it empty. Sizing Information is required for women's tops, so the listing is not ready until it has a value.
- Defaulting to "Fits small" for every fitted knit when the fabric has plenty of stretch. Stretch usually brings a fitted top back to true to size.
How Osello fills this field
Osello treats Sizing Information as a required parent-level text field on women's tops listings, so one phrase is shared by every color and size, and the listing stays incomplete until it is set (see required fields and listing readiness). The AI reads the product description first, then the attributes, then the images, and picks one of the exact Bloomingdale's phrases with no trailing period. It uses the brand's fit guidance when there is one, infers from silhouette and stretch when there is not, and falls back to "Fits true to size, order your normal size". Fit notes that live in Shopify metafields can be mapped in so the AI sees them (using Shopify metafields), and a house rule such as "all our knits run true to size" can be set with custom instructions.
Frequently asked questions
Is Sizing Information required for women's tops on Bloomingdale's?
Yes. Every listing in the women's tops department needs one of the exact phrases before it can be submitted.
Which phrase should I use when I have no fit data?
"Fits true to size, order your normal size". Bloomingdale's treats it as the default for a top with no fit notes, and Osello applies the same default.
Can I write my own fit sentence?
No. Bloomingdale's accepts only its exact phrases. A longer fit note belongs in the description or the highlights, and measurements belong in the size chart.
Can different colorways of one top have different values?
No. The value sits on the parent listing and is shared by every color and size of the style.
Where do garment measurements go?
Not here. Bloomingdale's has separate fit and dimension fields for measurements, and the size chart is uploaded as the Size Chart Image.