Size Reference
     L:waist 57~63cm, weight 40~50kg
   XL:waist 64~70cm, weight 47~60kg
 2XL:waist 71~77cm, weight 57~67kg
3XL:waist 78~83cm,  weight 65~75kg
4XL:waist 84~90cm,  weight 72~82kg
5XL:waist 91~97cm,  weight 80~90kg