I purchased this mat a few months ago from Amazon.com since I can no longer find it at any sports supply stores.  This mat is just like the ones we used to have in our grammar school gymnasiums.  I purchased it so that I can tote it around and use it at home.  It is easy to use since it folds out evenly without bumpy areas and stores well since it folds in half.  The mat is just the right thickness for comfort and I find that it supports me when I need to do exercises while lying on the floor.  I can no longer lie on a plain carpeted surface without extra cushioning from a mat.  The price is very reasonable as well.  If you are looking for a simple but comfortable floor mat for doing exercises and stretching I recommend this mat.  Note:  when you get the mat out of the box you may notice a plastic-type smell from being in storage.  This will dissipate over time and does not affect the quality of the mat.