I love this Free People sweater.
Yes I know I love all things Free People! Lol
Step one,
Go to thrift store. Purchase a sweater and a sweatshirt combo you like. :) they need to be similar sizes most importantly in the arm area.
I started by cutting off the arms. Then cutting from the center of the sweater because I quickly found the side seams were too bulky.
Cut off neckline by folding shirt in half and trimming an inch past the original collar, nice swooping collar now. Cut of the bottom ribbing. Set aside.
Line up arms of sweatshirt and sweater cut accordingly. Trim up the side seam and trim the top wide enough.
Pin. And pin. Bc the stretch sweater will stretch if you don't almost over pin. Problem! Ahhh pin with a lil stretch this is why I told you to make sure your combos have similar arms.
Now sew!! I did it all at once but looking back probably easier to do body first then the arms. But I'm rouge! I sewed over every area 3x with the sweatshirt being the outer hem kinda raw seam.
Make sure you give the bottom edge lots of attention. I did a close zigzag along the sweater side edge. Then give it a trim