Orvis Men's Christmas Island Bootie - A new and improved flats boot based on the long-standing and best-selling Christmas Island Flats Boot. Made of Airprene and vulcanized rubber; Airprene upper allows water to flow freely through the boot, but keeps sand and grit out; Easy on-and-off with YKK side zipper secured at the top by a hook and loop tab to prevent line snags; The sole and sidewall are a heavy-duty ridged rubber to protect against coral abrasion and offer excellent stability; Style: 2HN5;