Things You'll Need
Instructions
Lay on a table a T-shirt that is big enough to reach from your shoulders to your mid-thighs.
Lay a tank top directly on top of it, lining the straps up with the shoulders of the T-shirt.
Lay a pair of underwear on the T-shirt directly below the tank top.
Cut around the outline of the tank top and underwear, adding 1/2 inch all the way around for seam allowances. Cut through both layers of the T-shirt material so that you have two identical pieces of fabric when your are finished.
Lay the two pieces of fabric directly on top of each other, right sides together.
Sew the pieces together up the sides, along the crotch area and at the top of the straps, leaving the arm holes, collar and leg holes open.
Fold the collar, arm holes and leg holes under about 1/2 inch. Hem them by sewing over the folded edge, tucking the raw edge of the fabric under as you go.