The YZY FOAM RUNNER features injected EVA foam to provide lightweight durability. This model is made using algae harvesting technology that helps to keep lakes clean. The soft top layer in the footbed offers immediate step-in comfort. The strategically mapped vents around the foot provide air flow and breathability. Additionally, the YZY FOAM RUNNER will usher in a new box construction that does not require an additional shipping box when shipped, which leads to less cardboard material waste.