I finally got around to refashioning this 2XL tee from Threadless. It is a design called “Treasured” by designer Chow Hon Lam. I used Simplicity pattern S4380 (out of print) which includes raglan baseball tops for guys and gals, loose-fitting drawstring PJ pants, a stretchy tank top for women, and slippers.
Next, I cut off the sleeves, then cut the sides open. The pattern pieces for the front and back are cut on the fold of the fabric, so I opened up the shirt (which was still connected at the shoulders and neckband) into one long piece and folded it in half lengthwise before pinning the front and back pattern pieces on and cutting.
The sleeves were cut from a plain black Fruit of the Loom t-shirt I picked up for under $2 on sale at the local Michaels Arts and Crafts.
I sewed the sleeves onto the front, back, and collar band of the shirt, then stitched up the sides and the underside of the sleeves in one long line.