Sizing tends to run BIG Mens Sizing 550 CCM Series. This Flames jersey is part of the 550 semi pro CCM series •100% Air-Knit ® polyester •Flames crest patch heat pressed on front Blank on back •Officially licensed NHL Product Made in Canada MENS Sizing  Sizing tends to run BIG Measurements MEDIUM pit to pit MEDIUM 26 inches and top to bottom 30 inches