Please check the size chart and compare it with your own jeans!!
28 waist: 70cm pants 102cm
30 waist: 78cm pants 105cm
32 waist: 82cm pants 106cm
34 waist: 86cm pants 107cm
36 waist: 91cm pants 108cm
38 waist: 96cm pants 108cm
Size: Please compare the detail sizes with yours, please allow 1-3cm differs due to manual measurement, thanks (All measurement in cm and please note 1cm = 0.39inch)