Cross-country ski boot sole

A sole for a sports shoe, comprising:

• a first component acting as a framework extending from a heel area of the sole in a rear part of the sole to an anterior part of the sole and defining an opening in the first component, wherein the first component comprises two lateral parts extending in the anterior part of the sole, and wherein the opening extends in the rear part of the sole and in the anterior part of the sole between the two lateral parts of the first component, and
• at least one second component arranged at least partially in the opening and assembled with the first component,
• wherein the second component comprises a rear part and an anterior part, the rear part of the second component extending at least partially in the rear part of the sole and the anterior part of the second component extending substantially longitudinally in the anterior part of the sole between the two lateral parts of the first component,
• wherein a width of a maximum width part of the rear part of the second component is greater than a width of a maximum width part of a remainder of the second component including the anterior part of the second component extending in the anterior part of the sole, and
• wherein the first component of the sole attaches to a gliding board of the cross-country ski type with a transverse connecting pin situated near an anterior end of the sole.