This tee in Heather Grey is a fabric blend, lasts a long time and holds its shape. All other colors are not a blend and don't hold up as well, just FYI.
hendrix
A classic denim shirt is a great light layer over a tank or t-shirt.
Max Shirt - Deep Blue
I like getting flowy button-downs from Mango, they're a good staple.
Satin finish flowy shirt - Women | MANGO USA
These have been some sturdy staple tees, cropped just enough so you can lift your arms with no skin showing.
The Box-Cut Tee in Essential Cotton | Dark Green | No Pocket