The transparent box allows you to see at a glance what's inside. You can stack shoe boxes on top of each other to customize and save space in your room. The vents let your shoes breathe. These shoe boxes are not only used to store sandals, sneakers, boots or high heels, but also clothes, toys, tools and other accessories. Our stackable shoe boxes are durable and waterproof, making them ideal for storing shoes and protecting them from dust, moisture and dirt.