Men's Indy Leather Jacket Size:5X Large SIZE CENTIMETER HAT SIZE INCHES Ivamis SIZE CENTIMETER HAT SIZE INCHES 2X Small 51 52 6 3 8 – 6 1 2 20 – 20 1 2 X Small 53 54 6 5 8 – 6 3 4 20 7 8 – 21 1 4 Small 55 56 6 7 8 – 7 21 5 8 – 22 Medium 57 58 7 1 8 – 7 1 4 22 1 4 – 22 7 8 Large 59 60 7 3 8 – 7 1 2 23 1 4 – 23 5 8 X Large 61 62 7 5 8 – 7 3 4 24 – 24 3 8 2X Large 63 64 7 7 8 – 8 24 3 4 – 25 1 4 Easy cuff adjustment: Full opening zippered sleeve cuffs make the jacket easier to put on and help accommodate different glove arrangements so match your gear to the weather and ride conditions Choose the larger size when between sizes or adding bulky layers or armor