Introduced in 1969, the Hermès Constance quickly became one of the most highly sought-after of the brand’s luxury bags, behind only the Kelly bag and the Birkin. The Hermès Constance 18 is a stylish shoulder bag designed with versatility in mind. The Constance 18, also referred to as the Hermès Constance Mini. The squarish shape and large, prominent “H” closure across the front give this bag a youthful appeal, even when rendered in a durable Epsom calfskin, which is particularly popular because it tends to show color with greater vibrancy than most other leathers.