How to Create a Pants Tech Pack with AI

Pants tech packs require specifications that are unique to bottoms construction: rise measurements (front and back), fly construction details, pocket bag dimensions, waistband construction, and inseam/outseam measurements.

The fit of pants is highly sensitive to rise and thigh measurements — a 0.5-inch difference in rise changes the entire fit perception. Accurate specifications are critical.

Pants categories have significantly different construction requirements.

Rise is the most important pants measurement — it determines where the waistband sits and how the garment fits through the seat. Specify front rise and back rise separately, as back rise is always longer.

Fly construction needs detailed specification: zipper type and length, fly shield (J-stitch or bartack), button/hook type and placement, and whether the fly is a mock fly (joggers) or functional zip fly.

Pants typically have more pocket complexity than tops. Front pockets may be slant, on-seam, or western style. Back pockets may be patch, welt, or welt with button. Cargo pants add flap pockets at the thigh.

For each pocket type, specify: opening width, pocket bag depth and width, pocket bag material, bartack positions, and any closures (buttons, velcro, zippers).

Pants grading requires careful attention to the waist-hip-thigh relationship across sizes. The waist grades at roughly 1-1.5 inches per size, hips at 1.5-2 inches, and thigh at 0.75-1 inch. Inseam may grade at 0.5 inches per size or remain constant (common in denim).

AI-generated pants grading applies category-appropriate grade rules — denim jeans use different increments than dress trousers, and wide-leg pants use different thigh-to-knee ratios than slim-fit pants.