There are several in Santiago. Perhaps the best is one called....???? Damn if I can remember, but it will come to me...used to be on the corner of 11 street in the Jardines.
Owned by Leon Jimenes, I do believe...
Also, If you call Cap Cana and ask who did all of the shirts for the Cap Cana Championship, I am sure they would have an outstanding supplier.
there is Bordigraph in Las Colinas--809 295 2552
There is Leo Sanchez Sports, 809 581 6000, also in Santiago...
Neither of these are who I was thinking abour but I have seen work from both.
HB