Standard T-Shirt Sizing

  Body ⭥ Chest ⭤ Sleeve ⭥
S 27.5 in. 19 in. 8.125 in.
M 28.5 in. 21 in. 8.375 in.
L 29.5 in. 23 in. 8.625 in.
XL 30.5 in. 25 in. 8.875 in.
XXL 31.5 in. 27 in. 9.125 in.

Standard Sweatshirt Sizing

  Body ⭥ Chest ⭤ Sleeve ⭥
S 26.875 in. 20.5 in. 23.875 in.
M 28.25 in. 22.5 in. 24.375 in.
L 29.25 in. 24.5 in. 24.725 in.
XL 30.375 in. 26.5 in. 25.375 in.
XXL 31.5 in. 28.5 in. 25.875 in.