Is patent lighter weight than leather?

My patent ergo is super duper light....you bring up a great and bad question for me...if patent is lighter...maybe that is the way to go with gigi...hmmm....i've always questioned carrying her around with all the weight of that leather....hmmmm
 
I have a purple patent Bleeker tote and the thing is HUGE. It's probably my biggest bag yet. But, surprisingly, it is incredibly light weight on its own and compared to my other bags. Of course, that's without loading all of my other Coach goodies into it. :P