I bought this bag to use for an overseas trip, but found it was so useful I started carrying it instead of my handbag.  I bought a small bag in the 'desert' color.  I had to guess that it would be sand colored by the name, because the on-screen image looks white.  The material (nylon) is lightweight and the color is excellent for hiding dirt.  The small size is perfect for travel, but for daily use I'm going to get an extra small.  I can see myself with a collection of Healthy Back Bags - they're great!