I've just checked my Mass Effect hoodies to see what size they are, since they actually fit and are in US sizes; but they're women's sizes and I don't know if these men's/unisex sizes correspond. I guess I should change my Larian Vault entry though since US sizes tend to be a size or two up from what I'm used to in the UK.
Good idea! I usually go for girls/large for my MA effect hoodie, looking at the store guide then this would translate to small in the men's equivalent...
M.A Custom Women's Hoodie
S / M / L / XL / XXL
Length: 25" / 26"/ 27" / 28" /29"
Chest: 17.5" / 18.5" / 19.5" / 21" / 22.5"
Waist: 16.5"/ 17.5" / 18.5" / 20" / 21.5"
M.A Men's Custom Hoodie
S / M / L / XL / XXL
Length: 27.5"/ 28.5" / 29.5" / 30.5" / 31.5" / 32.5"
Chest: 22" / 23" / 24" / 25" /26" / 27"
Edit: So looking at the measurements provided by Raze a women's large would indeed be a small size