This product is wow wonderful. If you have never traveled with packing cubes you will be in for one organized surprise!  From fitting everything in to keeping organized with every nights stop this is a must have. I had my doubts but they disappeared once I packed them and the ease of pulling out my pouch with my night stuff each stop then repacking that pouch and pulling the day clothes pouch out.  No more rummaging thru my luggage trying to find black socks or whatever, these are a mandatory must!