SPERRY TOPSIDER. STS86577. WOMENS WINDWARD FLOAT FLIP FLOP. WHITE. Our water-friendly submersible sandal is this season s must-have nautical accessory. Made in one piece from buoyant 100 percent EVA with a wave-contoured footbed it provides all-day comfort with zero water absorption. Looks just as good with a swimsuit as it does with capris and denim.