The Heights XC Hoodie is a Premium 50/50 Polyester and Cotton Blend
 
Size Chart from Manufactuer
 
Sleeve, Chest, Shoulder
S   33.5in, 27in, 19.2in
M  34.5in, 28in, 21.2in
L   35.5in, 29in, 23.2in
XL 36.5in, 30in, 25.2in