non-woven fabric + pvc.The quilt storage bag has three sizes:The size of M is: 50*40*25cmThe size of L is: 60*40*30cmThe size of XL is: 70*42*35cm. Reinforced Handle: The handle is sewn with two layers of thick fabric, and the load-bearing capacity is doubled. Reinforced seams are also implemented for added strength. Large Capacity: It is spacious for your comforters, blankets, pillows, plush toys, jackets or other clothes. Premium Material: The organizer is made from high-quality, odorless, three-ply composite non-woven fabric which promotes ventilation and protects your stored things. Sturdy Zipper: Equipped with #5 stainless steel zippers which are hard to be broken, and can be used for a longer period of time. And two-way zippers allow it to easily slide along the closure when in use, regardless of how full the bag is. Versatility: The storage bag set can be used for closet or cloakroom, also a good choice for university dormitory, attic, bedroom use. They are just fabric bags, with no metal support inside, which is super easy to fold away into drawer or cabinet to save space.