Cycling pants

Cycling pants having a liner of a strong, soft, supple, non-extensible fabric material formed primarily of thermoplastic fiber elements and stitched along its perimeter to the pants, the liner consisting of a front portion located in generally the lower abdominal region, a rear portion located in generally the buttocks region and a perineal portion in the perineal region, characterized in that the liner is a single piece of material free of seams and heat-formed to impart a generally form-fitting shape in which the front portion curves sharply upwardly relative to the perineal portion, the rear portion and perineal portion are moderately concavely curved upwardly, and both lateral margins curve donwardly, diverge anteriorly and posteriorly and diminish progressively in curvature in the front and rear portions.