Arms EYE (armscye that is!) Some arms are heavier in the back – some need more room in front. Standard cap shapes may not be the best fit for many arms. Some arms are short above the elbow, some are long. Same from elbow to wrist! Forward arm joint anyone?? Learn how to measure these differences. There are multiple figure variations that affect sleeve comfort. Learn what these variations are and see how to alter the sleeve for them. Also learn some dressmaker secrets about sewing in a sleeve that will help with sleeve comfort and an overall improved look!