I lived in Florida at the time so it was hot, humid and occasionally hurricanes. Didn't know how long my fabrics would have to be packedup either so I went with the large plastic totes. Ended up with 50+ totes filled mostly with fabrics. They ended up staying packed up for 4+ years before the house sold due to a drop in the housing market back in 2007, moving to Iowa, finding a house, having it remodeled and then finally moving in. They survived beautifully. I don't try to keep fabrics in plastic of any sort for very long but it worked. Now I keep my scraps in small shoebox size plastic boxes but most of the lids are not totally closed due to having to cram the scraps in.