The present invention is trousers that include an inseam panel insert that may be continuous across the crotch and down the inside longitudinal lines of the legs, preventing the need for an actual seam on the inseam of the trousers. The inseam panel insert is connected to the other fabric of the trousers with seams that are disposed away from the traditional inseam location and away from the crotch area. The inseam panel insert has at least one area, and typically two or more, which has an increased, progressively increasing and progressively decreasing width, located between the crotch area and the end of the pant leg. The trousers allow increased flexibility, particularly in the seated position.