Rivalry Threads 91 by Knights Apparel Iowa State Cyclones Medium 38/40 Polyester Polo Type Shirt with Two Buttons and Iowa State Ingnia on left chest. Measurments are below. Please check out the pictures and ask any questions you may have. 

Condition is New with Tags

Medium Sizes:

Armpit to Armpit....................21"

Armpit to end of sleeve.........6"

Shoulder to end of sleeve.....9 1/2"

Neck to Bottom.....................28"

Bottom of Shirt...................21"