I always buy wrangler jeans and the sizing is consistent.  Long wear and good product.  The classic blue denim feels like a lighter weight than purchases in the past.  The black denim feels heavier.  I compared the new blue denim to an older pair of wrangler jeans and they do seem to be made of thinner material.  I do like the fact that they are not as stiff as the older pair of jeans and they look great when ironed.