CLASSIC FX liners are an excellent upgrade solution to cold feet in winter boots and Mukluks. Not intended to be a high performance liner, these super soft, low-density, medium thickness wrap style liners will provide maximum warmth and comfort every day.
Examples of compatible shells:
-FXR Snowmobile boots
The Classic FX works best with a shell fit* of 1-2 fingers (1/2-1)
This model can be worn out of the box or molded with the home fit kit if further customization is desired.