I'm a fairly big person, and I've had these and the 51mm Clubs.  I like these better.  I felt like the lenses on the 51's were to long, both cosmetically and ergonomically.  They actually touched my cheek on ocassion, where as the 49's look better and I forget I have them on.  I get more compliments with the black on black.  My others are tortise.  Hope this helps