These 'sandals' are great!  They are super comfortable and versatile.  They are true to size and seem to be pretty durable.  I've only had them about a month, but they seem like they'll last a long time.  The sole is a very 'cushy' on the inside which enhances the comfort and there are four vent holes on each side of the 'sandal' to allow drainage or airflow.  They are a great alternative when flip-flops may be inappropriate or undesired.