Hermès Constance 18, Black Epsom Leather, Blue Enamel “H” Plaque, Palladium Hardware

Leather: Black Epsom, pressed fine-grain calf, structured and scratch-resistant
Hardware: Palladium with contrasting blue enamel “H” clasp plaque
Closure: Signature “H” turn clasp, front flap
Format: Constance 18, adjustable shoulder-to-crossbody strap
Interior: Two main compartments, interior slip pocket
Dimensions: Approximately 7.1″ W x 5.9″ H x 2.4″ D, adjustable strap drop

The Constance is the most disciplined design in the Hermès lineup, and the 18 is its most wearable expression. Everything about it is reduced to essentials: a clean rectangular silhouette, a single front flap, and the sculptural “H” clasp that gives the bag its entire identity. This example takes that restraint and adds one deliberate flourish. The body is black Epsom, the pressed, fine-grained calf leather prized for holding its structure and shrugging off daily wear, and the “H” clasp departs from the expected metal finish with a blue enamel inlay framed in palladium. The effect is subtle but transformative, a cool flash of color against an otherwise all-black bag that reads as understated from a distance and reveals itself up close. Black Epsom is the most versatile canvas Hermès offers, and pairing it with a blue enamel plaque rather than a standard palladium or gold “H” turns a classic into something quietly distinctive.

Epsom is the ideal leather for this design. Its rigidity keeps the Constance’s clean lines crisp, it resists scratches better than softer grained leathers, and it is the lightest of the structured calf options, which matters on a bag meant to be worn crossbody all day. The adjustable strap allows the piece to be worn long across the body or shortened to the shoulder. A precise, architectural bag with one perfectly judged detail.