The *stitch* is real (and so is the comfort). The Leith Sweater by SIMONMILLER boasts a boxy, relaxed fit, adorned with whipstitch seams and ribbed detailing. The *stitch* is real (and so is the comfort). The Leith Sweater by SIMONMILLER boasts a boxy, relaxed fit, adorned with whipstitch seams and ribbed detailing. 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.