For image sizing reference:

Each color is shown first on a model wearing size Small then on a model wearing size X-Large.
 

Aisylu (dark hair & nursing child in tan shorts) is 5 3 , wears a size 2 in jeans and a 34B bra. She s wearing a size small.

Kelsey (curled hair) is 5 9 ,wears a size 4 in jeans and a size 34C bra. She s wearing a size small.

Nora (jean shorts) is 5 3 , wears a size 14 16 in jeans and a size 42C bra. She s wearing a size X-Large.

The blush striped tee is first shown in a size small, then in a size large.