I hope Im using the correct terminology. What Im looking for is the correct material to insert into say a sleeve for pressing. I have an oversized mousepad for doing uneven presses such as hoodies and bags. What I need is something to keep the sleeve straight and flat. A few of my designs will involve a full sleeve of art and text so keeping the sleeve straight is a real concern. Plus Im hoping to do sport jerseys and a good many of the logos end up on, yup you guessed it, the sleeve. Also, I havent used Plastisol. Will using something like a mousepad adversily affect the transfer? I know I havent posted many "in need of info" posts but when it rains, it pours.