Birkenstock has been called by many nick names Birk, Birks, German sandals. Birkenstock has many trademark sandal and Clog styles such as Arizona, Gizeh, Mayari, Boston, London, Milano, Madrid, Ramses, Medina, Kario, Zurich, Rio and Tokio. Birkenstock also manufactures closed toe shoes and boots, Harris, Arran, Bartlet, Islay, Derby, Pasadena, Memphisand Iona. In workwear Birkenstock has the Profi Birki range, Birki, Super Birki, A630 and A640. Birkenstock alos do the super grip for styles such as Arrizona, Tokio, Boston and London.