Centimeters XS S M L XL 2XL 3XL 4XL 5XL Height 171 175 179 183 189 195 195 195 195 Chest 86 93 99 104 116 129 135 142 162 Waist 71 76 81 89 99 112 119 130 137 Chest: Measure all round your chest just below your armpits. Waist: Measure round your waistline, where your trousers would button up. Height: Your natural height. If you fall between the sizes, go for the larger of the two.