Model Birkenstock Arizona BS (Birkibuc/Birko-Flor) in the shade Sandcastle is the quintessence of summer minimalism. The name of the colour – "Sand Castle" – perfectly reflects its character: it is a very light, warm beige that fantastically emphasizes the summer tan. It's a great alternative to the classic Taupe model, offering a slightly brighter and more luminous look that will brighten up any look. What distinguishes the Sandcastle variant? Unique shade of beige: Sandcastle is a pure and natural color that balances between ivory and very light sand. It is extremely easy to combine with other colors. Skin-friendly material: The abbreviation BS often refers to the brand's synthetic materials (like Birko-Flor or Birkibuc) that are durable, easy to care for, and padded with soft fleece underside for maximum comfort. Cork-Latex Soul: The heart of the shoe is an invariably anatomically profiled insole that adapts to the unique shape of your foot over time, taking care of the health of the spine. Matched details: The buckles and EVA outsole are usually kept in a tone that matches the upper, which creates a consistent, "monochromatic" look. Lightness and Durability: Thanks to the use of lightweight EVA foam in the sole, the sandals are great at absorbing shocks during city walks.