The thickness (as one reviwer stated) is no different thatn a regular cheap fleece hoodie.  I was expecting something a lot thicker.  And it seems a bit small on me (LRG size).  I am afraid to wash it beause if it shrink even a little I'll have to give it to someone smaller.
The only good thing I can say is the quality is good.  But I could have purchased 2 similar hoddies from Kohl's or the like for the same price.
Oh - and the color of the inside of the hood for the navy color is navy - not the gray pictured above.
UPDATE:  Gave it to my son.  Couldn't stand how tight the arms were even with just a log sleeve T on underneath.  Get a size larger than you normally wear.