Size Medium Fits 10/12 Simply Comfortable The Joy vest is a longline sleeveless vest made from light fabric and features a dropped armhole made to show off that awesome LuLaRoe top underneath. It also has tall side slits that provide added movement as well as another option for showcasing your LuLaRoe skirt beneath. Both breezy and flirty, the Joy vest is perfect for summer weather. It also makes a fun look when the days start getting shorter.