The sizing chart refers to actual body measurements in inches.
Garment measurements are larger to allow 'EASE' of fit.         
  YOUTH M L XL
 Champion Hoodie (chest) 28"-29.5" 31"-32.5" 34"-35.5"
 Everyday Hoodie (chest) 28"-30" 30"-32" 32"-35"
 T-shirt (chest) 28"-30" 30"-32" 32"-34"
  ADULT S M L XL 2XL 3XL 4XL
 Champion Hoodie (chest) 34"-36" 38"-40" 42"-44" 46"-48" 50"-52" 54"-56"  
 Everyday Hoodie (chest) 34"-36" 38"-40" 42"-44" 46"-48" 50"-52" 54"-55"  
 T-shirt (chest) 36" 39" 42" 45" 48" 51"  
Sizing Chart