Big Pony (Men)                                                           Golf (Men)

Size                                           Small                         

Shoulder size                       17.5 inches                     16.5 inches

Length armpit to armpit        19 inches                        19.5 inches

Total Length                         25/27 inches                   24/26.5 inches

                                               Medium

Shoulder size                      18.5 inches                     18 inches

Length armpit to armpit        21 inches                       21 inches

Total Length                        26/28 inches                   25.5/27.5 inches

                                            Large                             

Shoulder size                     19.5 inches                      19.5 inches

Length armpit to armpit      22 inches                          22 inches

Total Length                       27/29 inches                     27/29 inches

                                           Extra Large

Shoulder size                     20 inches

Length armpit to armpit      23 inches

Total Length                       27.5/29.5 inches