The SIMONMILLER Pia Poplin Pants offer a relaxed, flattering fit with a clean-front, wide-leg silhouette. The SIMONMILLER Pia Poplin Pants offer a relaxed, flattering fit with a clean-front, wide-leg silhouette. SIMONMILLER is a Los Angeles-based lifestyle brand encapsulating a playful take on classic luxury. Featuring ready-to-wear, footwear, bags, and jewelry, each piece epitomizes the vibrant and mod lifestyle of their CEO and Creative Director, Chelsea Hansford.