Shirt and jeans manufacturing involves the process of designing, cutting, sewing, and finishing clothing items such as shirts and jeans. The process typically starts with the design phase, where designers create sketches or use computer-aided design software to create digital designs of the clothing items. Next, the fabrics are sourced and cut into patterns based on the design specifications. Then, the fabric pieces are sewn together using industrial sewing machines, and any necessary trims or embellishments are added. Finally, the finished clothing items are inspected for quality and packaged for shipment to retailers or customers.