Wore out a T-shirt (threadbare!), so picked up a bargain $2 replacement at the thrift store. Custom tailored it today. Before photo. #sewing
It looks great! And yeah, that is wacky about the size difference
Well done!
As for the sizing, three remarks you will most likely know but just in case:
1—manufacturers are free to do whatever they want, they aren't bound to any existing size charts.
2—Different knits can have different amounts of stretch, which they'll adjust the pattern dimensions for.
3—Design ease is a thing: Much more in women's clothing but also in menswear.
Enjoy your new t-shirt!