Waist Guage                                                                 Chest Guage

22"-24" = Small Boys (6-9 year old)                              22"-24" = Small Boys (6-9 year old)         

24"-26" = Medium Boys (10-12 year old)                      26"-28" = Medium Boys (10-12 year old)  

26"-28" = Large Boys (13-14 year old)                         30"-32" = Large Boys (13-14 year old)     

28"-30" = Youth                                                             33"-34" = Youth                                         

30"-32" = Small Mens                                                     34"-36" = Small Mens                                 

32"-34" = Medium Mens                                                 38"-40" = Medium Mens                             

34"-36" = Large Mens                                                    42"-44" = Large Mens                                 

36"-38" = X-Large Mens                                                46" - 48" = X-Large Mens                           

38"-40" = 2X-Large Mens                                              50"- 52" = 2X-Large Mens                          

40"-42" = 3X-Large Mens                                              54"-56" = 3X-Large Mens

All the above sizes are approximations as some clothing manufacturers sizes can vary from company to company.