S/M/L/XL/2XL/3XL, four sizes for your selection. It is of elastic waist, easy to put on or take off. Please refer to the Size Chart carefully before you make an order, considering it is Asian size, usually smaller than US size, a bit larger may fit better.
Size Information
S------Suitable for waist from 25.6"-29.5"
M------Suitable for waist from 27.6"-31.5"
L------Suitable for waist from 29.5"-33.5"
XL------Suitable for waist from 31.5"-35.4"
2XL------Suitable for waist from 33.5"-37.4"
3XL------Suitable for waist from 35.4"-39.4"