It's Asian size,please check the detail sizer on the size chart image.
<br />Material: 92% Cotton, 5% Polyester, 3% Spandex
<br />3 Colors: Gray, Dark Blue, Black
<br />Collar: O-Neck
<br />Sleeve: Long Sleeve
<br />Style: Fashion
<br />Pattern: Print
<br />Occasion: Casual
<br />Closure Type: Pullover
<br />Season: Spring, Autumn
<br />Design: O-Neck, Print, Fashion
<br />Department Name: Men
<br />Package Content: 1 x Men Sweatshirt
<br />Please ignore the tag size comes with the clothes. The tag size sometimes can be a larger than our description size because those are for Chinese. We are 1 or 2 sizes smaller than European and American people.
<br />Size: There are 4 sizes  (S/M/L/XL) available for the following listing. please allow 1-2cm differs due to manual measurement, thanks (All measurement in cm and please note 1cm=0.39inch)