Comfort and convenience at a great price.  Great to slip these on once you are on a plane especially if your feet swell during travel...they don't take up too much room and are lightweight.  You can also slip them on while going thru security baggage check...instead of walking barefoot when asked to remove your shoes at airport security.  Great as houseslippers too, but don't expect them to last too long.  But at their cheap price you can purchase multiple pairs.