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 pin touring binding. 1062g
New Purist Ski Touring Binding. 682g
Crampon for Dynafit / Plum bindings.
Dynafit ski brakes for Vertical, Radical (2011 only) & Comfort Bindings
Leash to connect boots to bindings, 35g.
First aid kit which fits between your Dynafit ski crampons.
Light Midwidth Tourer.
Versatile Touring Ski..