OLPA - Size Shoulder Across Back Sleeve Length Jacket Length UK 4 63 47.5 66.9 UK 6 64 48 67.15 UK 8 65 48.5 68.4 UK 10 66 49 68.65 UK 12 67 49.5 69.9 UK 14 68 50 70.15 UK 16 69 50.5 71.4