Product dimensions (finished product measurements): Back length: S/24.2 inches (61.5 cm), M/24.8 inches (63 cm), L/25.4 inches (64.5 cm), LL/24.2 inches (66 cm), MS/24.2 inches (61.5 cm), LM/3.9 inches (86 cm), Shoulder width: S/33 cm), M/35 inches (35 cm). M: 14.6 inches (37 cm); S/20.9 inches (53 cm), M/21.3 inches (54 cm), L/21.7 inches (56 cm), M/20.9 inches (53 cm), L/60.6 - 64.2 inches (54 - 162 cm), LL/60.9 - 60.9 inches (54 - 154 cm)