Birkenstock Women's Gizeh Nubuck Sole Fashion Sandals, Orange Leather, 37 M Birko-Flor - Made of acrylic and polyamide felt fibers, this material is a soft fabric with a smooth leather-like finishAvoid extreme heat: The original Birkenstock footbed - Featuring pronounced arch support, deep heel cup, and roomy toe box. Footbed molds and shapes to your footApply Cork Sealant: Birkenstock sandals and clogs come with a light coating of cork sealant on the exposed cork edge. This protects the cork and prevents it from drying out. When the cork no longer looks shiny, apply a thin coat of Birkenstock Cork Life to protect the cork from the elements. EVA - Flexible, lightweight, durable and shock absorbing To Clean: Wipe clean with a damp cloth. Try soap and water or a mild leather cleaner to remove stubborn stains. Care Tips: