Black sublimation Tshirts with white a3 panel on front.

[webtrekker]

How about JetPro SofStretch, for darks?

[IrishPrint]

I am definitely gonna take this up with China land see if I can get some sort of prototype, but yes the panel would have to be marginally smaller than A3/A4.

For the job I thought of it for, it'd have to be A3.

I'll revert if this becomes a goer.

[Earl Smith]

subliflock would be to thick in my opinion. in this size anyway.

Not if you buy the thin subiflock.
But it does become harder when printed and pressed so that could be a problem in this size.
Other option could be the OBM from TMT. Nice and thin but a pain to cut out and place on shirt before pressing.