A tale of two t-shirts.
The stripey one is the Seamwork Devon pattern, turned into a boxy t-shirt like I did this past spring. I really like the black striped Devon from the spring, so I made its negative, white with black stripes.
I cut the pattern at the hip markings (plus a deep hem) and applied a neckband instead of a cowl neck.
The fabric I used is a white and black striped jersey that I bought in Vietnam several years back. I'm not sure the content, but maybe a rayon blend of some sort? Beefier than the orange jersey, but still with plenty of drape.