Any ideas on how I get this style of design onto breathable t shirts please?
What exactly do you mean by that?
Do you want to print exactly this design on our functional shirts? And do you want to order it yourself or do you want to sell such a design?
Just create a similar design and either upload it in the Create Yourself area and place it on a function shirt, or upload it in your partner area and create a function shirt.
Where exactly do you have problems?