Sturdy Support Structure: Reinforced plastic board on the sides and bottom (not flimsy cardboard) , our under bed storage bins keep its shape and easy stacking, sturdy for long-term use Great Material: Made with 1200D linen and breathable non-woven fabric, resists tearing, dust, and moisture. Thick PVC cover adds waterproof protection Large Capacity: Each under bed storage container has a large 60-liter capacity. Measures 33L x 16.5W x 6.3H, fits most underbed spaces. When not in use can fold up it for space-saving storage Easy Access & View: Large clear top window allows you to to see whats inside easily; the label holders with blank cards on two sides for your mark, two visible windows help you identify the contents more quickly. 4 reinforced handles make it easy to carry and pull out from under the bed. Double strong metal zippers making for smooth and easy open and close Multi-Purpose Use: Our foldable and stackable storage bins can be used to store seasonal clothes, beddi