For narrow cross-country skis used on tracks and easy terrain, the typical binding pairing you'll see is NIS/NNN bindings with light and synthetic boots. If you're looking for slightly warmer boots and a more durable binding, BC bindings and boots are a good choice.
When it comes to cross-country skiing on mountainous terrain, BC bindings are the general choice for 90% of skiers. These bindings have a wider and sturdier design compared to the narrower NNN bindings. Some skiers touring for telemark turns prefer 75mm bindings.
On wider, more downhill-oriented cross-country BC skis with a waist of 60mm or more, we recommend using BC Magnum or 75mm/75mm cable bindings for optimal performance from your skis, boots, and bindings.