By traditional screen-printing.
We do things the way our grandparents did, but with the help of a mechanical color station. As you already know, it's a handcrafted process. T-Shirt by T-Shirt and color by color.
In Wikipedia, they give an excellent description of screen-printing.
We print on the T-Shirt front and back
Bear in mind that we cannot stamp over seams (hems and side seams, neck etc.). We always leave a safety margin.
We'll adjust the distance between the neck and design according to our experience. In any case, if you'd like you can indicate the measurements and we'll try to respect them when it comes to printing. Remember that this process is done by hand.