then you want to pin the tags to the right side of the heavier weight fabric. You want to make sure that the head of your pin is position on the inside rather than the other edge. This will make it easier for you to remove the pin after it's sewn.
Now you lay your other side piece right side together. Pin it and sew all the edges leaving a space about 2'' to make it easier for you to turn your project right side out. Remove the pins.
Now iron your piece to give you a guide of where to sew the opening closed. Continue to topstitch all the way around. That's it! you're done.