A Sweater Designer is a fashion professional who specializes in designing sweaters, knitwear, and related apparel. They work with yarns, fabrics, colors, and patterns to create stylish, functional garments. Responsibilities include sketching designs, selecting materials, collaborating with manufacturers, and staying updated on fashion trends. Sweater Designers often use digital design software and hand-knit techniques to develop prototypes. They may work for fashion brands, retailers, or start their own knitwear line.