Birkenstock Atacama Sandal. Brave the outdoors in this rugged and durable Birkenstock sandal. Rubberized synthetic upper features three-point adjustability with hook and loop fasteners, Rubber grips at toe, instep, and heel. A raised toe bar is designed to encourage the natural gripping motion of your feet. Shock absorbing PU midsole. unisex men’s size 9 women’s size 11 Birkenstocks size 42. Made in Germany. New without box/tags.