Note: the following dimensions show the size of the pants. You could measure your similar pants then compare to this size chart to choose the best fit size. Size Chart(Unit:inch) 29 Waist: 29.1 Hip: 36.2 Length: 42.5 30 Waist: 30.3 Hip: 37.4 Length: 42.5 31 Waist: 31.7 Hip: 38.6 Length: 42.5 32 Waist: 33.1 Hip: 39.8 Length: 43.3 33 Waist: 34.3 Hip: 40.6 Length: 43.3 34 Waist: 35.4 Hip: 41.7 Length: 43.3 35 Waist: 37 Hip: 42.5 Length: 43.3 36 Waist: 38.2 Hip: 43.7 Length: 43.3 38 Waist: 40.6 Hip: 45.7 Length: 43.3 40 Waist: 43.3 Hip: 47.6 Length: 43.3