Crafted from premium portuguese full-grain leather, the Proper Slip-On Obsidian features a sleek, minimalist silhouette with a deep, refined finish. Lined with ultra-soft calfskin leather, it ensures breathability and a glove-like fit for all-day comfort. The hand-finished rubber outsole provides lightweight flexibility and lasting durability, while the cushioned, leather-wrapped footbed offers tailored support. With its laceless design, this piece embodies the timeless elegance of the Atelier Series, merging understated luxury with effortless wearability.