Design: Ultra-lightweight and water-friendly EVA foam construction Two adjustable straps with buckles for a custom fit In-shoe Comfort: Birkenstock® footbed offers arch support, a deep heel cup, and a roomy toe box Durability & Traction: Flexible, durable and shock absorbing EVA outsole Additional Details: Care instructions: Wipe clean with mild soap and water The fit of this style is a medium width but may be listed by Birkenstock® as narrow