Forget it, the next parent's body mass index is 17.6, slightly deviating from 18.5-23.9, and a little thin. Now let me tell you about the standard size of women's clothes, hoping to help you:

1S 160/84

2M 165/88

3L 170/92

4XL 175/96

If parents buy online, the size of the web page is the size of the tile of clothes, and the human body is three-dimensional, so 3-5CM space needs to be vacated. In view of years of experience in buying clothes, cotton T-shirts tend to shrink after washing. In view of many years' experience in buying clothes, it is better to buy size L.