Bra Sizing for Wholesale: Measurements, Labels and Size Systems

Ask which sizing system and model the chart describes. Record the recommended body range separately from any flat garment dimension. Letter-size garments such as S–XL need their own model-specific guidance; do not invent a precise band-and-cup conversion because the letters resemble another supplier's range.

A band measurement changes with closure position and tension. Record whether the sample is flat and relaxed, which hook setting is used, and how the measurement endpoints are defined. Agree tolerances with the technical team instead of borrowing one universal tolerance for every measurement. Do not compare a stretched band with a relaxed one as if they were equivalent.

Use the intended brand or supplier chart for that model and preserve its system name. Cup-letter sequences differ, especially in larger ranges, so a label such as G does not establish identical capacity across systems. Sister-size concepts do not make different bands interchangeable fits and should not be used to substitute unavailable sizes without fitting approval.

Check representative samples and the ends of the proposed range, with appropriate consent for any fitting records. Keep the factory code and customer-facing label on the purchase specification so relabeling does not silently change the product. Once the fit mapping is approved, plan quantities using your own demand evidence rather than a presumed global middle-size preference.