The drop figure is the carry decision
Bottega Veneta's product pages give the strap drop beside the bag's dimensions, and on the Cassette it reads 52 cm: long enough to sit on the shoulder with room to spare, and long enough to wear across the body. The small Cassette keeps the same 52 cm drop while measuring 19 cm wide and 4 cm deep, so the difference between the two sizes is capacity rather than carry. The padded Cassette is wider and deeper again at 26 cm and 8 cm, with a 50 cm drop. Read together, those figures are the whole comparison: two bags that differ visibly in the room they offer can hang at almost the same point on the body. Across the three Cassette versions in the table the drop moves only 2 cm across 52, 52 and 50, while the width moves 7 cm, from 19 to 26, and the depth runs 4 to 8 cm.
The Jodie's height includes the knot
Bottega Veneta lists the full-size Jodie at 40 cm wide and 48 cm high, and that height needs one piece of context: it is measured over the knotted Intrecciato handle, so it describes the whole silhouette rather than the depth of the bag body. The knot is the handle — the two ends of the woven strap tied through — which is why the shape reads as a soft crescent with a tall arch. In use the woven body relaxes around whatever it is carrying, so the width you see in a photograph of an empty bag is not the width it presents when it is full. On a woven bag the measurements describe the material rather than a fixed frame. It is also the only row in the table whose height runs past its width, 48 cm against 40 cm, while the Cassette row that publishes both figures is the other way round at 23 cm against 15 cm.
Crescents, baguettes and half-moons carry differently
The shapes in this group are all carried on the shoulder or in the hand, and they sit differently because of where the strap attaches. A crescent or half-moon has its strap fixed at the two upper points of a curved body, so the bag hangs low and close against the side, and the same printed drop can sit higher on a rigid body than on a soft one. A baguette is short and horizontal with a strap that passes under the arm, which fixes it higher and flatter than a hobo of the same width. A structured shoulder bag holds its own shape and stays where its strap puts it. Comparing two woven bags of similar width, the drop and the construction of the body explain more of the difference than the centimetres across.
What to confirm on a specific bag
Four questions settle most of the uncertainty. Where the drop is measured from — the top of the strap or the point where it attaches — because that shifts the figure by a couple of centimetres. Whether the strap is fixed or adjustable, since an adjustable strap turns a shoulder bag into a cross-body one. Whether the width quoted is taken across the base or across the opening, because on a woven crescent those two figures can differ by several centimetres. And what the bag is asked to carry: the Andiamo is listed 25 cm high, with a depth of 18 cm on the large version, and that depth is what makes a structured bag stand away from the body where a woven crescent lies flat against it.