The Rottefella Xcelerator Classic Binding could have been made out of feathers and helium and it wouldn't be much lighter. Checking in at just under six ounces per pair, the Xcelerator is the lightest classic binding out there, but it isn't some flimsy one trick pony. It's made of tough plastic and has an innovative steel clamping system that grips the toe axle at the widest points for increased power transmission and ski control. The Xcelerator also utilizes the wide footprint and easy adjustability of the NIS system, so you have total control over your skis at all times without the need for tools or screws. It even has swappable toe bumpers, so you can change the binding flex to suit your needs or the conditions, making it the only classic binding you'll need.