This storage bag is made of 100% eco-friendly polypropylene nonwoven fabric that allows air to circulate inside, ultimately keeping stored items fresh for longer. Also both sides are made of 2 layer thickened fabric, more durable and sturdier. With the help of top transparent window, you will find what inside easily and quickly. This storage bag has 5# larger metal zippers, it can be used more than 1000 times (not like most cheap bags where zipper break after only few uses). 2 front and 2 side reinforced handles make it easy and convenient for you to carry and pull out from under the bed. You can also fold this storage bag flat to save space when not in use. This underbed storage bag fits perfectly under your bed. And ideal for storing clothes, comforters, blankets, off season duvets, beddings, pillows, garments, sweaters, and so on. Keep your closet tidy and clean.