The soft fabric made them easy to wear. Denim and other thick materials can be too heavy, so having a thin fabric like this is useful, and it's also great for pajamas. Alternatively, wearing it under a dress makes it useful in spring, autumn, and winter. Recommended for those doing maternity yoga or Pilates. Pilling is unlikely, so you can wash it without worry. I've probably worn it about 10-15 times. Discounts available for bulk purchases.