GLP-1 weight loss drugs are already changing apparel demand as consumers change sizes and lifestyles. Nearly a quarter of U.S. households are using these medications, with most expecting to buy new clothes, and over half already have. Early signals show declining demand for larger sizes and rising sales in smaller and mid-size categories, especially in intimates. Beyond sizing, shoppers are updating wardrobes to show their new routines and confidence, increasing purchases in categories like activewear, jeans, dresses, and footwear. While overall apparel growth may stay the same, demand driven by GLP-1 is emerging as a tailwind for wellness- and comfort-focused segments. At the same time, plus-size retailers are already feeling pressure, with companies like Destination XL and Torrid reporting sales declines, showing a broader structural change in the industry rather than a temporary trend.