So I think "Old Guys Rule" tee shirts are corny and I would not wear one, but this on the other hand..
Gildan Series 5000T For sizing details, click here.
Dirty Hands Marine Engineer Gildan Cotton T-Shirt
Fra $24.99
Plimsoll Orange T-Shirt
Plimsoll Yellow T-Shirt
Plimsoll Blue T-Shirt