Adopt double-layer environmental friendly and breathable polyester very tight and fine with small holes, easy to filter dust and dirty. seal with flap for protections. Please do remember to slide the pull inside the flap to keep it from catching and unzipping, and a quiet and safe wash. Fit for washing underwear, sock, hosiery and stocking and other small clothes. These laundry bags give your expensive bra and lingerie full protections, protect them from tangling, snagging, deforming or in washer. For better washing effect, please keep of clothing less than 2/3 capacity of net bag. Great for organizing your bra and small pieces when packing for a trip.