AI Tech Pack Example: Heavyweight Cotton Hoodie

This heavyweight pullover hoodie targets the premium basics market segment, competing with brands like Reigning Champ, Camber, and heavyweight offerings from Los Angeles blanks manufacturers. The design prioritizes weight, hand feel, and a relaxed contemporary fit over embellishment or graphic treatment. The value proposition is material quality and construction durability rather than trend-driven styling.

The silhouette follows a relaxed fit with moderate drop shoulder, straight body, and a slightly elongated hem that covers the waistband when worn with mid-rise pants. The hood is three-panel construction with a tubular drawcord channel, and the kangaroo pocket extends across the full front panel width. Ribbing at the cuffs and hem uses a 2x1 rib knit with five percent spandex for recovery.

The body fabric is a 400 GSM French terry knit composed of 80% ring-spun combed cotton and 20% polyester. The cotton component provides softness, breathability, and a substantial hand feel, while the polyester content improves dimensional stability and reduces shrinkage after repeated washing. Ring-spun combed yarn construction ensures a smoother surface texture and higher pilling resistance compared to open-end or carded yarn alternatives. The fabric is brushed on the inside face to create a plush interior surface that improves insulating properties and skin comfort.

The ribbing fabric for cuffs, hem band, and hood edge is a 2x1 rib knit at 320 GSM, composed of 95% cotton and 5% spandex. The spandex content provides elastic recovery that maintains snug fit at the extremities even after extended wear and washing. Rib height is set at 7.5 centimeters at the cuffs and 8 centimeters at the hem band to provide sufficient grip without riding up during movement.

All measurements are taken with the garment laid flat and are specified in centimeters. Tolerances are plus or minus one centimeter unless otherwise noted. The size M serves as the base size with grading increments of two centimeters between adjacent sizes for circumference measurements and 1.5 centimeters for length measurements. Grading is linear across the size range with no break points.

All seams are sewn with cotton-wrapped polyester core thread to match the body fabric composition philosophy. Main body seams use a four-thread overlock stitch at 12 stitches per inch for strength and stretch compatibility. The shoulder seam is reinforced with cotton twill tape sewn into the seam allowance to prevent stretching under the weight of the heavy fabric. The kangaroo pocket is attached with a coverstitch at 8 stitches per inch on the top opening edge and overlock-joined at the side seams.

The three-panel hood construction uses a center panel that runs from the forehead to the back of the neck, joined to two side panels that create the depth and volume of the hood. The hood attaches to the neckline with a clean-finished binding using the same body fabric, creating a smooth interior surface against the neck. The drawcord channel is formed by folding the hood front edge inward and topstitching at 3 centimeters from the fold, creating a tubular channel that accommodates an 8 millimeter cotton drawcord with metal aglet tips.

Trims are deliberately minimal to align with the premium basics positioning. The main label is a woven damask label with the brand name and size indicator, sewn into the center back neck seam. A care label with composition, washing instructions, and country of origin is sewn into the left side seam at the waist level. The drawcord aglet tips are nickel-finish metal, crimped at 2.5 centimeters long, with the brand initial debossed on each tip.

No external branding, hang tags, or decorative hardware is included in the base specification. The garment relies entirely on material quality and construction to communicate value. Hang tags and poly bags for retail presentation are specified separately in the packaging section.

All colorways are achieved through garment dyeing on the finished product. Garment dyeing produces the soft, lived-in color quality associated with premium basics and ensures that all components including body fabric, ribbing, and thread achieve a uniform color match. Dyeing tolerances follow AATCC standards with a minimum rating of 4 on the grey scale for shade consistency between production lots.

Each colorway specifies a Pantone reference for production matching. Thread color matches the body fabric for all colorways. Metal aglet tips maintain the same nickel finish across all colorways for hardware consistency.

This complete tech pack was generated by Skema3D from a single natural-language prompt describing a heavyweight cotton pullover hoodie with premium basics positioning. The AI interpreted the garment description to select appropriate fabric weights, construction techniques, and measurement proportions for the specified market segment. The 3D render generated alongside the tech pack provided multi-angle views that confirmed the silhouette, pocket placement, and hood proportions before any specification details were finalized.

Designers can modify any generated specification to match their exact requirements. Changing the fabric weight from 400 GSM to 350 GSM, for example, automatically adjusts related construction recommendations including stitch density and needle gauge. This interconnected specification model ensures that modifications propagate logically through the tech pack rather than creating internal inconsistencies.