If you're after the lightest possible ski touring set up then Dynafit bindings are a no-brainer. They offer the ultimate in ski touring performance and are massively lighter and simpler than other styles of AT binding.
Note: You will require special boots to use with Dynafit bindings.
Lightweight multi use touring binding. 1062g
Ski Crampon for all Dynafit Bindings
Dynafit ski brakes for Vertical, Radical (2011 only) & Comfort Bindings
First aid kit which fits between your Dynafit ski crampons.
Wide Backcountry ski.
Lightweight freeride touring binding. 1198g.
Versatile Touring / Backcounty ski.
Superlight Touring / Backcountry binding. 1040g