AETREX. AE815. WOMENS RITA ADJUSTABLE THONG SANDAL. BLUE SNAKE. The Rita Thong Sandal part of our Active Sandal Collection feature unique colors and patterns and an UltraSky EVA foam foundation to provide all-day comfort and support. Easy to clean and wear this water-friendly sandal is perfect for vacations getaways relaxing weekends or an evening out with friends.