Rob Gronkowski L Blue Patriots NFL Jersey Read below for measurements. Throwback Pats Gronk Reebok Proline. Condition is "Used". Shipped with USPS First Class. This looked small for a men's large so had to be either womens or youth. The measurements seemed closer to a large youth then womens sizing. The chart sizing I read said chest is 39.5". I measured one side at 20" and that times 2 is 40". The back length on the size chart for large is 27". I measured 26" so it has shrunk a little. The pit to pit measurement is 15" and the sleeve to sleeve measurement is 30".. No holes or stains on this dark nsvy blue Proline NFL eqipment jersey. Go Pats.