Cross-country ski bindings: NNN, Prolink, Turnamic, and SNS explained

Cross-country ski binding compatibility seems complex because many names describe different elements. NNN, Prolink, and Turnamic refer to the modern boot interface, while names like IFP or NIS can also refer to mounting plates.

NNN

NNN stands for New Nordic Norm. It is one of the most widespread modern interfaces. The boot has a metal bar at the front and grooves that engage with the binding.

Prolink

Prolink uses the same general sole geometry as NNN. Modern Prolink boots therefore work with many NNN and Turnamic bindings.

Turnamic

Turnamic also uses the modern NNN interface at the boot level. The term is often associated with bindings mounted on an IFP plate, which allows the binding to be easily moved on certain skis.

SNS

SNS Profil and SNS Pilot are older systems using different geometry. An SNS boot will not work on an NNN/Prolink/Turnamic binding.

Simplified compatibility table

NIS and IFP plates

A plate is the interface between the ski and the binding, not necessarily between the boot and the binding. Some bindings slide on their proprietary plates. You must therefore check both boot-to-binding and binding-to-plate compatibility.

Special cases: NNN BC and Xplore

NNN BC is designed for backcountry skiing with a more robust interface. Xplore is a different system geared toward Nordic touring. They should not be confused with standard track NNN.

FAQ

Does a Salomon Prolink boot work on an NNN binding?

Yes, in the vast majority of modern cases.

Does a Fischer Turnamic boot work on Prolink?

If it uses the modern NNN sole, yes.

Can I put an SNS boot on an NNN binding?

No.

What is an IFP plate?

A mounting plate that allows certain Turnamic bindings to be installed and often adjusted.

Do I have to change my skis if I change my boots?

Not necessarily. Sometimes you just need to choose a boot that is compatible with your current bindings.