KEEN Stingray Sandal - Toddler size 5 in great condition. The KEEN Toddlers' Stingray Sandal is an itty bitty water shoe for itty bitty feet. Quick on and off, quick-drying, and quick to clean. The soft neoprene lining and simple hook and loop closure combine for a comfy, secure fit, and the non-marking Aquagrip outsole keeps 'em upright when traversing wet surfaces.