Lyle & Scott’s Cotton Crew Neck Jumper is a truly year-round piece of knitwear. The 100% merino cotton construction is lightweight & breathable, as suitable for layering on cold winter days as it is for late summer nights. Size Guide: Small: 36-38" Medium: 38-40" Large: 40-42" X-Large: 42-44" XX-Large: 45-47" 175881