J. Jill is located at 55 S Main St, Naperville, IL. This location is in the Downtown Naperville neighborhood. This business specializes in Clothing Manufacturers and Women's Clothing. J. Jill is open Mon - Fri, 10am - 8pm; Sat, 10am - 6pm Sun, 11am - 6pm and accepts American Express, Cash, Discover, Mastercard and Visa.