What Are Pants?

Sep 11, 2025

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Pants are garments worn below the waist, consisting of a waistband, crotch, and two legs.

Modern trousers combine practicality and style, developing mainstream styles such as work pants and wide-leg pants. Manufacturing techniques encompass traditional crotch seams and modern over-the-knee styles. For daily care, wash light and dark colors separately and avoid direct sunlight to prevent fading.

Pants are a basic style that can be worn by almost anyone. Depending on preference, the pleats on the front can be varied into gathered or ruched designs. Fabrics: Common wool, cotton, linen, and synthetic fabrics are all suitable. Colors like black, gray, navy, and brown are relatively easy to match with tops; simple, delicate striped or checkered fabrics also work well.

The added thickness from the front and back center is calculated proportionally to the hip circumference. Larger body types can add slightly more thickness, while smaller body types can add less. The knee height line can be determined based on the drafting position. If the pants are longer below the heel bone and have a wider leg opening, the knee height line should be raised slightly for a better shape. The inclination of the back crotch line is determined by functionality. A greater inclination results in a longer back crotch line. The difference between the sum of the front and back crotch lengths on the pattern and the measured net crotch dimension is the allowance and range of motion. Normally, this difference of 2-3cm is appropriate. If there is excess or deficiency, adjust the amount at the top of the crotch line and the back crotch line. For special cases, a larger difference is preferable. After drafting, join the front and back crotch lines together and check if the crotch curve is natural and smooth. If there are deviations, the drafting and pattern need to be corrected. Cutting points: Use the smooth edge of the fabric to cut the waistband. Fold the remaining portion in half and cut the front and back pieces alternately. For fabrics with a smooth or glossy finish, cut the front and back pieces in the same direction. The front opening in the illustration uses the same zipper attachment method as the skirt, so the seam allowance is widened. If facing is used, a facing pattern should also be drawn.

After putting on the garment, stand in a relaxed posture. Check if the trouser crease hangs straight, if the allowances in each part are appropriate, and if the crotch and trouser length are suitable.

For body types with a large front and back: The front and back crotch curves and pleats are caused by insufficient crotch curve allowance. Add the insufficient allowance to the front and back lower crotch lines and the crotch line.

For body types with protruding hips: Due to the protruding hips, diagonal pleats are made towards the side seams, causing wrinkles in the back crotch. Add the insufficient hip allowance from the side seams and back center, increasing the back crotch slope and the width of the crotch width. Secondly, increase the dart allowance, adding most of the extra allowance to the side seams.

For body types with flat hips: Due to an excessively long back crotch, excess pleats appear at the crotch curve. Reduce the back crotch slope and the width of the crotch width, and reconnect the crotch curve. Adjust the dart position. Subtract the outward shift of the crotch circumference from the side seam.

For body types with protruding thighs: Due to the strong outward protrusion of the thighs, the slanted creases towards the side seams are also skewed; add insufficient allowance to the side seam, distributing the resulting increase in waist circumference evenly between the two darts. If the front of the thighs also protrudes significantly, then add insufficient allowance to the crotch circumference as well.

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