Veste ENDURA MT500 ADV Noir Size:3XL while the half high collar protects Diameter:30.0mm while the half high collar protects the neck from wind and cold Sizes Chest circumference (in cm) Arm length (in cm) Size (in cm) Waist circumference (in cm) XS 91 96 63 65 162 168 68 73 S 96 102 64 66 168 172 73 78 M 102 106 65 67 172 178 78 83 L 106 112 65 68 178 182 83 88 XL 112 116 67 69 180 185 88 93 XXL 116 122 68 70 182 188 93 99 XXXL 122 127 70 71 183 188 99 104 This high performance material effectively protects against the elements while wicking away internal moisture Sizes Chest Measurement Waist Measurement XS 89 94cm 74 79cm S 94 99cm 79 84cm M 99 104cm 84 89cm L 104 109cm 89 94cm XL 109 114cm 94 99cm XXL 114 119cm 99 104cm XXXL 119 124cm 104 109cm Measure your chest circumference by passing the tape measure under your armpits and across the upper part of your chest