BagCheck compares the three exterior measurements in the best physical orientation. It does not invent a missing axis label or assume that unknown protrusions are included.
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September 1, 2026 ULTRA collection; distinct material and weight from the standard model. Evidence: research/weekly-launches-2026-09-08/followup/fc6c4b5ccdd4e5f4.json. Hardware inclusion and packed fit are not assumed.