The Constance 24 is the better pick for most buyers, and the Constance 18 is the better pick if you carry a phone, a cardholder, and little else. That verdict rests on four criteria: overall dimensions, strap drop and carry position, interior layout, and the hardware and construction details that define the Constance line. Both sizes share the same design language, so the choice comes down to capacity and proportion rather than features.
Best Constance 24/18 Hermès: Size Comparison and Picks
How the two sizes differ
Hermès names the Constance by width in centimeters, which makes the comparison simple. The Constance 18 measures about 18 cm across, and the Constance 24 measures about 24 cm across. Height and depth scale with width, so the 24 is taller and slightly deeper, and it sits farther from the body when worn on the shoulder.
- Constance 18: compact, structured, reads as an evening or weekend bag.
- Constance 24: roomier, reads as an everyday shoulder or crossbody bag.
- Smaller and larger siblings: the Constance 14 is a micro size, while the Constance Elan is a longer east-west shape. The Constance Slim is a wallet format on a strap rather than a full bag.
Constance 24: pros and cons
Pros
- Fits a full-size wallet, phone, keys, sunglasses in a soft case, and a small pouch.
- Longer strap makes crossbody wear practical for average and taller frames.
- Proportions keep the H clasp from dominating the front panel.
- Works with both casual and formal outfits, so it earns its place in a rotation.
Cons
- Heavier than the 18 once loaded, and the fixed strap cannot be shortened.
- Bulkier against the hip when worn crossbody.
- On the secondary market it usually commands more than the 18 for the same leather and hardware.
Use case: daily commuting, travel, and anyone who refuses to downsize a wallet. Choose the 24 if you want one Constance that covers most days.
Constance 18: pros and cons
Pros
- Light and easy to carry for long stretches.
- Proportion looks intentional with dresses, tailoring, and evening wear.
- Holds a phone, cardholder, keys, lipstick, and a folded scarf.
- Photographs well because the clasp and flap fill the front panel.
Cons
- A standard wallet, most sunglasses cases, and a water bottle will not fit.
- Shorter strap can feel tight over a coat, and it is not adjustable.
- Small capacity means you may still need a second bag for workdays.
Use case: dinners, events, and minimal-carry days. Choose the 18 as a second bag, not as your only bag.
Features the two sizes share
- H clasp: a rotating closure set into the front flap, finished in the same metal as the rest of the hardware.
- Single flap: one flap covers the opening, with a structured top edge that holds its shape.
- Interior: an open compartment with at least one flat slip pocket. Some versions add a rear exterior slip pocket.
- Strap: fixed length, attached at the sides, no adjuster and no detachable clips.
- Base and feet: reinforced base with metal feet on most leather versions, which protects the corners.
What to inspect on a 1:1 replica
Feature parity is what separates a convincing replica from a generic copy. Check the clasp first: it should rotate smoothly, sit flush when closed, and align with the flap edge. Count stitches per centimeter along the flap and side seams and confirm they are even and angled. Look at the interior pocket seams and the edge paint, which should be thin and consistent with no pooling at the corners. Finally, confirm the strap attachment points are stitched, not glued, and that the bag stands on its feet without leaning.
Verdict
Buy the Constance 24 if you want one bag for everyday use and crossbody wear. Buy the Constance 18 if capacity is secondary and proportion matters more. Ordering both sizes in the same leather is a common wholesale move because the pair covers day and evening demand without doubling the hardware spec.