I bought 3 pair in different colors and have been wearing them almost every day.  They are extremely comfortable, true to size, wash well on delicate cycle and don't need to go into the dryer.  Just hang them up damp and they are dry in a couple of hours.
If you do put them into the dryer use the delicate or low setting and remove them after a few minutes.  These are perfect for travel as they are so light and take up very little space in suitcase or backpack.