- Chest :
Measure under your arms, around the fullest part of your chest.
- Waist :
Measure around your natural waistline, keeping the tape a bit loose.
Certainly a unique t-shirt for sister.
Green t-shirt for women with quirky Big Sis print.
Also see, Lil Awesome Sis T-shirt for younger Sister
Get matching brother t-shirt and make a pair.