AI Tech Pack Example: French Terry Jogger Pants

This French terry jogger is positioned in the premium athleisure space alongside brands like Lululemon, Vuori, and Outdoor Voices. The design prioritizes a clean, tapered silhouette that looks intentional rather than sloppy, with a construction quality that supports daily wear for multiple seasons. The garment is intended for all-day comfort in contexts ranging from work-from-home use to casual dining and weekend errands.

Key design features include a wide elasticated waistband with internal drawcord, tapered leg from the knee to the ankle, ribbed ankle cuffs for a clean hem finish, and a four-pocket layout with two front slash pockets and two back welt pockets. The back welt pockets elevate the garment from sweatpant to trouser territory and provide secure storage for essentials.

The body fabric is a 330 GSM French terry knit composed of 75% ring-spun cotton, 20% polyester, and 5% elastane. The cotton provides softness and breathability, the polyester contributes dimensional stability and moisture-wicking capability, and the elastane delivers the four-way stretch that makes the tapered silhouette comfortable during movement. The French terry loop construction on the interior face creates a textured surface that improves air circulation and moisture absorption compared to flat-back fabrics.

The waistband and ankle cuff ribbing is a 1x1 rib knit at 300 GSM with 93% cotton and 7% elastane. The higher elastane content in the ribbing provides firm recovery that keeps the waistband from rolling and the cuffs from sagging after extended wear. The ribbing is knitted with the same yarn dye lot as the body fabric to ensure color consistency at attachment points.

All measurements are flat measurements in centimeters. The waist measurement is taken with the waistband elastic in a relaxed state. Tolerances are plus or minus one centimeter for length measurements and plus or minus 0.5 centimeters for the waist and leg opening where fit is critical. Grading increments are 2 centimeters for circumference and 1.5 centimeters for length between adjacent sizes.

The waistband is a 6 centimeter wide tube of 1x1 rib fabric folded over a 3 centimeter wide knitted elastic band. The elastic is enclosed within the rib tube rather than exposed, creating a clean finished appearance with no visible elastic on the exterior or interior face. The elastic is secured at the side seams and center back with bartack stitches to prevent internal twisting during wear and washing.

The drawcord is a 7 millimeter flat woven cotton tape threaded through a channel formed at the top edge of the waistband. Two reinforced metal eyelets at the center front allow the drawcord to exit the waistband. The drawcord extends 15 centimeters from each eyelet and terminates with silicone-dipped tips that prevent fraying while maintaining the soft hand of a woven cord. The drawcord is functional rather than decorative, providing waist adjustment of approximately 5 centimeters of take-up.

Front pockets are on-seam slash pockets with pocket bag fabric of 100% cotton broadcloth at 110 GSM. The pocket opening is 16 centimeters long, angled at 15 degrees from the side seam toward the center front for ergonomic hand entry. The pocket bag depth is 20 centimeters, providing adequate storage without creating visible bulges through the tapered thigh area. The pocket opening is reinforced with a bartack at both ends to resist stress from repeated hand entry.

Back pockets are single-welt construction with a 13 centimeter opening. The welt is 1.5 centimeters wide and made from the body fabric to maintain visual continuity. Each back pocket includes a hidden snap closure using a 10 millimeter cover button that matches the body fabric color. The pocket bag is the same cotton broadcloth as the front pockets, with a depth of 17 centimeters. Back welt pockets transform the jogger silhouette from athletic to casual trouser, making the garment appropriate for contexts where a standard sweatpant would feel underdressed.

The leg construction uses a two-panel front-and-back layout with an inseam and outseam. The taper is progressive from the knee to the ankle, reducing width from 22 centimeters at the knee to the cuff attachment point. This gradual taper avoids the abrupt narrowing that creates a balloon effect above the knee, instead producing a clean line that follows the natural shape of the lower leg.

The inseam is sewn with a four-thread overlock and then flat-felled with a single-needle topstitch for durability in the high-stress crotch area. The outseam uses a four-thread overlock only, as the stress load on the outseam is lower and the flat-fell stitch adds unnecessary bulk to a seam that sits against the outer leg. The ankle cuff attaches with a coverstitch at 8 stitches per inch, with the cuff set at 90 percent tension to create a snug ankle that stays in position above the shoe line.

This jogger tech pack was generated from a Skema3D prompt describing premium French terry jogger pants with tapered legs and welt back pockets. The AI identified the garment as a bottom category product and automatically included specifications for rise measurements, taper ratios, and pocket construction details that are specific to pants and would not appear in a tops tech pack. The generated 3D render displayed the jogger from front, back, and side views with visible waistband detail, pocket placement, and taper profile.

The AI's category awareness extends to construction details. For example, the specification of different seam types for the inseam versus the outseam reflects the different stress loads on each seam, a detail that experienced pattern makers apply automatically but that might be overlooked by designers less familiar with bottoms construction. Skema3D embeds this manufacturing knowledge into every generated tech pack.