We went back to the design table to come up with a better way to make a removable-sleeve jacket and in the process created a brilliantly versatile jacket. The zippers sit just above the elbow and cover 3/4 of the circumference of the arm. With the sleeves in place, you have Castelli's top-performing Perfetto RoS long-sleeve jacket. Remove the sleeves and you have a real Gabba to wear with your Nano Flex arm warmers. The zippers are covered so you don't see them from the outside or feel them from the inside. This is in a men's size medium. Dimensions approx. Chest: 18", Front Length: 23", Back Length 28", Sleeve Length 24". Imported.