These are size 20. They are very lightweight with elastic waist & faux drawstring. Nice placement of pockets. Comfortable and versatile. You can dress them up with a cardigan or blazer; or you can wear casually with a T-shirt. You decide. Great for a polished casual look in the office. EUC, worn a few times (bought the 18 as these don’t need to be sized up - true 20).