Labels in clothes

Hi I wondered if anyone can help. My son is 18 with Aspergers and is very sensative to different cloths and labels in his clothes. We are having a big celebration and I need to get him a nice shirt without labels in,  especally around the neck area does anyone know of a brand that has printed labels on thier shirts . Its a big thing for him to be leaving the house so he has to feel comfortable in what he is wearing. Thanks for this site its brill.