The PENUMBRA collection features commuter-friendly mules with signature TWOGAA square toe cap. Each silhouette pays homage to the classic lines of traditional derbies, reinterpreted through a unisex, modern, and architectural lens. Our mules are handmade for motion and built for the in-between, effortlessly carrying you from commute to meeting to dinner without missing a step. Engineered for all-day support and crafted for zero break-in time, they deliver structure, comfort, and style from the first wear. Key Features: Signature TWOGAA square toe 100% geniune black leather upper Lined with 100% buttery-soft brown kid leather 30% bio-based rubber outsole with 3D architectural engraving Abrasion-resistant, slip-resistant outsole with 4cm (1.5") block heel Detachable and adjustable fastening straps Metallic customizable TPU decor Handmade in small batches with meticulous craftsmanship