An elegant cross-strap, toe loop sandal with an adjustable strap in a variety of materials. A most popular style and wardrobe basic. Upper material: Birkibuc – Made of acrylic and polyamide felt fibers, this material offers a textured finish that looks and feels like velvety nubuck. Footbed: The original Birkenstock footbed – Featuring pronounced arch support, deep heel cup, and roomy toe box. Footbed molds and shapes to your foot. Sole material: EVA – Flexible, lightweight, durable and shock absorbing.