Hey this more of a newer technology I believe. The inks work on cotton to blends. Not sublimation. But you do need to heat press them. The one Mike on here is looking at is a Chinese company but he is in New Zealand so he goes there all the time. I am getting samples from HP but their ink might have more of a hand to it being latex based. But you never know. But it does side step pre treating shirts and being on a roll you can output a ton of hat transfers, long sleeves, sweat pants, and yeah all overs. Large heat press required but again no pre treat.