Women's Vionic Tide 2.0 Flip-Flops This toe-post sandal brings a clean, minimal look together with comfort that works from poolside to busy days on the go. A smooth man-made upper and slim post keep the foot secure while leaving plenty of open space for airflow. The cushioned footbed supports each step with a soft, stable feel. With its medium-height sole and grippy bottom, this sandal keeps you relaxed and confident on a variety of surfaces.