A fashion design internship allows a student to gain hands-on experience in the fashion industry. There are training opportunities available with fashion magazines, fashion retailers, fashion designers, and other fashion-related businesses. The intern program can vary from a couple of weeks over the summer to many months. Your responsibilities change depending on what part of the industry you study. Your duties may include researching season trends, buying textile and material, assisting with sewing and pattern making, setting up a merchandise line, completing clothing inventory, learning to promote a brand, or handling administrative tasks.