The front design is embroided and the back is printed using silkscreen printing! 
 
Size Chart (in inches):
XS: Chest - 36, Body Length - 25
S: Chest - 38, Body Length - 26
M: Chest - 40, Body Length - 27
L: Chest - 42, Body Length - 28
XL: Chest - 44, Body Length - 29
XXL: Chest- 46, Body Length - 30