Model is wearing size L, his normal size. Tee may fit more snug on larger than average chest, arms, and/or midsection. If a more roomier fit is desired, consider ordering the next size up.
I have been waiting for the sweatshirt to restock online and at convention it was sold out but I was told it would be online. For me, when there’s XS unisex, I can size down from a Large to a Medium. My experience work and I like my sweatshirt.