What Is Cut and Sew? Custom Garment Manufacturing Explained

The cut-and-sew workflow begins with the design concept and tech pack development. Patterns are drafted, graded across sizes, and laid out on a marker, which is a cutting plan that arranges all pattern pieces to minimize fabric waste. The marker is placed on a stack of fabric layers called a spread, and the pieces are cut simultaneously using a straight knife, band knife, or automated cutting machine. The cut pieces are then bundled by size and garment component and distributed to sewing operators.

Sewing follows a sequence of operations that builds the garment piece by piece. Shoulder seams are joined, sleeves are set, side seams are closed, and finishing operations like hemming, buttonhole making, and pressing are completed. Each operation is typically performed by a different operator on a specialized machine, an approach called progressive bundle system or assembly line manufacturing. After sewing, garments go through quality inspection, pressing, folding, tagging, and packing for shipment.

The fundamental difference between cut-and-sew and blank decoration is control. With blanks, the brand is limited to the styles, fabrics, and fits offered by the blank manufacturer. Labels, care tags, and branding can be customized, but the garment's construction is predetermined. Cut and sew allows the brand to specify every detail: the fabric composition, the fit, the stitch types, the seam finishes, the hardware, and the internal construction.

Cut and sew also carries higher minimums and longer lead times. Fabric must be sourced, patterns must be developed, and production must be scheduled with a factory. Blank programs offer faster turnaround and lower minimums because the garments are already manufactured and only need decoration. Emerging brands often start with blanks to test the market and transition to cut-and-sew as their volume and design ambitions grow.

Fabric sourcing is one of the most critical steps in cut-and-sew production. The fabric determines the garment's hand, drape, durability, and cost. Designers typically source fabric from textile mills, jobbers, or fabric agents, requesting strike-offs for print approval and lab dips for solid-color approval before placing bulk orders. Fabric is usually ordered in minimum quantities set by the mill, which can range from a few hundred yards for small mills to thousands of yards for large-scale producers.

Fabric quality testing is essential before cutting begins. Tests for weight, shrinkage, colorfastness, crocking, pilling, and tensile strength ensure the fabric meets the brand's specifications and will perform as expected in the finished garment. Skipping fabric testing is one of the most common mistakes made by new brands entering cut-and-sew production and often leads to costly issues in the finished product.

Selecting the right factory is a critical decision. Factors to evaluate include the factory's specialization, minimum order quantities, quality standards, lead times, communication responsiveness, and ethical practices. Factories specialize by product category. A factory that excels at knit t-shirts may not have the equipment or expertise for tailored woven jackets. Matching the garment type to the factory's capabilities is the first filter in the selection process.

Many brands discover factories through trade shows, industry directories, sourcing agents, or referrals from other designers. Requesting and evaluating samples before committing to a production run is standard practice. The sample reveals the factory's quality level, attention to detail, and ability to follow a tech pack. Communication during the sampling process is also an indicator of how the factory will perform during bulk production. A factory that is slow to respond or makes errors during sampling is unlikely to improve at scale.

The cost of a cut-and-sew garment includes fabric, trims, labor (cutting, sewing, finishing), factory overhead, and shipping. Fabric is typically the largest cost component, often representing forty to sixty percent of the total. Labor costs vary dramatically by production country and garment complexity. A simple t-shirt requires fewer sewing operations and less time per unit than a structured blazer with welt pockets and a full lining.

Understanding the cost structure helps designers make informed decisions during the design process. Simplifying construction, reducing the number of fabric types per garment, and designing for marker efficiency all lower the per-unit cost without necessarily compromising design intent. Digital tools like Skema3D allow designers to visualize and refine designs before incurring sampling costs, reducing the number of physical prototypes needed and accelerating the path to production-ready designs.