I have been buying Royal Robbins Women's Backcountry shorts now for a bit over 10 years.  They last wonderfully and are so easy to wash and quick to dry even if not in a dryer though just hung up to air dry.  This particular pair seem to run a bit bigger in the waist than the older pairs I have from 10 plus years ago (yes they really do last that long and I wear them all the time in the summer).  I had ordered a size up as well in same color though they are really too big so I kept them to wear around the house or just hang out in.