I have purchased thin, small, nylon bags in the past and never was able to make use of them.  These laundry bags are large, double stitched and a heavy thick cotton canvas type of material.  I purchased several and have them on hand when I will need a roomy, sturdy, breathable storage bag.   I showed them to my husband and he was amazed at the quality.  He said "Buy more. Buy more!!!"  I love Wayfair!!!