Fit is all about the shape of the pants: slim, regular or relaxed. The fit you prefer will depend on the style and look you prefer.
Slim Fit: Form fitting, tailored at waist, hips and thigh. These pieces are often good for layering as they offer a more active fit that sits close to the body.
Regular Fit: Standard fitting, tailored at the waist. These pieces often offer a flattering fit without being too tight or constricting, and fit true to size.
Relaxed Fit: A larger fit, little to no tailoring with more room in the waist and hips. Theses pieces offer more room for comfort and layering.