Silk Road TeesCustom T-Shirt Add Your Text Personalized T Shirt for Men & Women Cotton Tee

I know it says these shirts are for men and women, but are the sizes men or womans? Sorry if this is a stupid question.

Can you print on both front and back?

How long does this take for delivery?

How is it printed? Is sublimation used where the ink is actually part of the fabric or is the image just pressed on top of the fabric?