I used one of Daniel’s T-shirts (men’s Large from Old Navy) and the jersey works great for him and for me. After all it’s a loose vest thing it doesn’t have to fit perfectly. Fold it in half. Trace the basic shape of the bodice (not including the sleeves.
Instead of doing a curve for the neck I just angled the line down from the shoulder.
Cut out your pattern 1/2 inch outside your tracing line so that you have a 1/2 inch seam allowance.
Now cut out your main color fabric (maroon).
Sew your jersey together:
With a 1/2 inch seam allowance sew your shoulder seams together.
Then sew down your side seams. I used a serger but you can just sew it on a sewing machine. Since you’re using a knit you don’t have to worry about finishing your seams.
Next cut out your accent fabric (goldenrod):
You want 5 inch strips the width of the fabric for the front band and 2 inch strips for the armhole bands.
Lay it along the front edge of your jersey you just sewed.
You might need to sew two strips together to make it long enough if so do that. Cut a length the right side for the front.
Next lay it around the armhole and cut to the right size. Make a tube for each armhole by sewing the short ends together. Repeat for the other side.
Iron each piece in half and then sew (or serge) to the jersey.
You should now have the basic jersey made. All that is left is decorating it.
Make your iron-ons:
If you’ve never used heat transfer vinyl it’s one of my FAVORITE craft supplies you can learn more with my How to use Iron-on Vinyl post but for now I’ll just assume you know how to use it.
I just searched for an emblem I liked and then typed out what I wanted it to say on the back, cut it out of my vinyl and then ironed it on.