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)
28Wx31L:Inseam: 30”—- Front rise: 10”—-Thigh: 21”—-Leg opening: 12 ”
30Wx31L:Inseam: 31”—-Front rise: 10”—-Thigh: 22”—- Leg opening: 12”
32Wx32L:Inseam: 32”—-Front rise: 11”—- Thigh: 23”—- Leg opening: 12 ”
34Wx32L:Inseam: 32”—- Front rise: 11”—-Thigh: 24”—- Leg opening: 14 ”
36Wx32L:Inseam: 32”—-Front rise: 12”—- Thigh: 25”—- Leg opening: 15”
38Wx32L:Inseam: 32”—-Front rise: 12”—- Thigh: 26”—- Leg opening: 16”
40Wx32L:Inseam: 32”—-Front rise: 12”—- Thigh: 27”—- Leg opening: 17”