It’s true to size. XS is XS.
Size Chart
XS----Chest: 29.92 Sleeve: 23.62 Length: 19.29
S-----Chest: 31.50 Sleeve: 24.41 Length: 20.08
M----Chest: 33.07 Sleeve: 25.20 Length: 20.47
L-----Chest: 34.65 Sleeve: 25.59 Length: 20.87
XL----Chest: 37.01 Sleeve: 25.98 Length: 21.65
Size Suggestion
Standard US size, can be selected according to normal wearing size, elastic and stretchable.
Fittness Sport Vest Coat
New release womens workout gym fitness top, high stretch material. Adapt to human activities, lightweight and comfortable. It also keeps the appearance of the clothing beautiful