I've been wearing Levi's for 30 years so I didn't feel like I was taking a risk by ordering them online.  I bought 31 inch waist and tried them on, couldn't even button them.  I then tried on an old pair of 30 inch waist jeans and they were tight but I could button them.  So... I took a tape measure and measured them, they're less than 30".  I've read this situation has become a common problem with Levi's but it had never happened to me.  Since most of the stores I shop at now carry Lee's and since I can no longer trust Levi's sizing... I've bought my last pair of Levi's.