Ivory, Light Pink, and Black are from the regular sweatshirt line, and the other colours are from the pigment dye line, which costs more.
Sizing (chest width, length) in inches:
XS – 19, 27
S – 20, 28
M – 22, 29
L – 24, 30
XL – 26, 31
2XL – 27, 32
3XL – 28, 33