Saw these over http://www.antigravitygear.com. Don't think it gets any lighter for the features.
3.2oz for the 750ml, strainer lid and handles!
http://www.antigravitygear.com/proddetail.php?prod=ECA521&cat=99
4oz for the 1 liter
http://www.antigravitygear.com/proddetail.php?prod=ECA522&cat=99

