Men's - US Costume Size Chart

Medium Large Extra Large
Chest 38-40 42-44 46-48
Waist 32-34 36-38 40-42
Leg 32.75 33 33.25

Men's - International Size Chart

Medium Large Extra Large
Chest UK 38-40 42-44 46-48
Chest EUR 48-50 52-54 56-58
Waist 81.3-86.4 91.4-96.5 101.6-106.7
Leg 83.2 83.8 84.5