These Olukai Nui sandals are men's slip-on flip-flops in a size 11M. The brown leather thongs feature the Polani model with a comfortable leather lining and insole. They are designed for various occasions like travel, activewear, parties, and casual or business settings. These sandals have arch support, a breathable design, and a durable leather outsole - perfect for summer or spring wear with a tropical or beach theme.