The Apparel Production Process Explained Step by Step.

The process begins with a design concept - a sketch, mood board, or reference garment that establishes the silhouette, fabric direction, colourway, and construction intent. This creative direction must be translated into a precise technical document called a tech pack, which specifies every measurement, fabric specification, trim detail, seam type, print placement, and packaging instruction. Without a complete tech pack, manufacturers cannot produce consistent garments or accurate quotes. Vague briefs are the single most common cause of costly sampling delays.

A pattern maker converts the tech pack measurements and construction instructions into physical or digital 2D pattern pieces - the precise templates from which fabric will be cut. The master pattern (usually in the base sample size) is then graded into the full size run, ensuring each size scales correctly from the original. CAD pattern software is now standard at most professional facilities, offering greater precision and the ability to digitally store and retrieve patterns between seasons.

Fabric is sourced from mills based on the tech pack specification - fibre composition, weight in GSM, knit or weave structure, and finish. For coloured fabrics, dyeing labs produce small test swatches (lab dips) matched to the brand's Pantone references. Brands must review and approve lab dips before bulk fabric is dyed or processed. This stage also covers sourcing all trims - zippers, buttons, snaps, drawcords, labels, and threads. Fabric lead times are frequently underestimated; this stage often determines the overall production timeline.

The first physical garment - called a proto sample or first fit sample - is sewn to test how the pattern translates into a real garment. It checks overall silhouette, panel proportions, seam construction, and fit on a body or dress form. The brand evaluates the sample against the tech pack POM (points of measure) sheet, provides written fit notes, and requests specific adjustments. Multiple sample rounds may follow until the design is correct. Sampling is the most important quality gate in the entire process.

Once the design is approved in sampling, a pre-production sample is made using the exact bulk production fabric, by the exact factory that will produce the bulk order, with all production trims and labels in place. This PP sample is the brand's final opportunity to approve the product before mass production begins. The signed-off PP sample becomes the Golden Sample - stored at the factory as the binding quality benchmark against which all bulk production units are compared.

With PP approval given, bulk fabric rolls are laid out in precise, even layers on industrial cutting tables. A computerised marker - an optimised layout of all pattern pieces - maximises fabric yield and minimises waste. Fabric layers are cut simultaneously using industrial straight-knife cutters or automated cutting systems. Grainline alignment during spreading is critical: distorted or off-grain fabric causes twisted seams that emerge after washing, even if garments look correct at the time of cutting.

Cut fabric panels are bundled by size and colour and routed through specialised sewing stations. Each station operates a specific stitch type - lockstitch for structural seams, overlock for raw edge finishing, flatlock or coverstitch for sportswear and hem construction. Hardware attachment (zippers, buttons, snaps), pocket construction, collar and cuff assembly, and label sewing are completed at designated stations in production sequence. In-line quality checks at regular intervals catch stitch failures or measurement deviations before they compound across the production run.

Completed garments are thread-trimmed and pressed. Wash treatments specified in the tech pack - enzyme wash, silicon softener, garment dye, or others - are applied at this stage. All garments pass through metal and needle detection equipment before packing (mandatory for most export markets). A pre-shipment quality inspection using AQL sampling methodology checks a statistically representative sample of the order against the golden sample and the POM spec sheet. Garments failing the inspection are reworked or rejected before packing.

Approved garments are individually polybagged (with the correct size sticker and fold method), packed into export cartons in the approved size ratio, and carton-marked with shipping labels, country of origin, HS code, and customs reference information. The manufacturer prepares shipping documents: commercial invoice, packing list, certificate of origin, and any applicable textile or compliance declarations. Goods are dispatched by sea freight (typically 20–35 days to Europe or North America from Bangladesh) or air freight (5–10 days) depending on the brand's timeline and budget.