It's called the Everyday V-Neck for good reason: Soft, lightweight, loose-fitting and a universally flattering neckline make it a tee you'll want to live in.
Measure under the arm and around the fullest part of the bust with arms down, keeping tape horizontal.
S | M | L | XL | |
Bust | 32-33 | 34-35 | 36-37 | 38-39 |