Bobux SU Zap Seashell Under the seashell colourway of the leather Zap sandal is more than meets the eye! With a fast-drying leather upper, the toe of the Zap sandal is left unlined to optimise the quick-dry effect, while the heel is lined and padded for optimal comfort. Little toes are protected by the Zap’s closed-toe design, with breathability provided by stylish cutouts. Single Velcro Strap. Adjustable Around Ankle. Fits Average Width Feet. Standard Length..