Common size vocabulary
| Term | Meaning | How to use it |
|---|---|---|
| BB | Small size designation in many families | Compare dimensions within that family. |
| PM | Petit modèle | Usually a smaller model; exact capacity varies. |
| MM | Moyen modèle | Often the middle size; never assume fixed measurements. |
| GM | Grand modèle | Usually a larger option in a particular family. |
| Nano / Mini | Very small interpretations | Check usable interior space, opening, and strap length. |
| Numbers such as 25, 30, 35 | Often an approximate length designation | Use the actual listed measurements; dimensions differ by model. |
| Bandoulière | Shoulder strap | Look for original strap configuration and attachment points. |
| Pochette | Pouch | The term appears in many different product families. |
| Sac | Bag | Part of numerous French model names. |
| Épi | Ear of wheat | Names the rippled leather texture’s inspiration. |
Measure the piece you have
Record length, height, and depth with the bag resting naturally. Note whether a listing includes handles in the height or measures the widest point. Strap drop and overall strap length are separate measurements.
A curved bag’s base can be narrower than its widest point. A soft bag can change shape with contents. Small measurement differences can reflect technique, while larger discrepancies need further comparison.
Capacity is more than external dimensions
Check the opening, interior dividers, pocket depth, and how the bag closes. A structured small bag may carry less than a flexible one with similar external dimensions.
When evaluating an edition, photograph or list exactly which accessories are present: strap, pouch, clochette, padlock, keys, luggage tag, or dust bag. Their inclusion varies by model and purchase history.