Jacket Length
Measure from the upper end of the shoulder where it joins the neck to the length required (you might use one of your own jacket).
Shoulder
Measure from one edge of the shoulder to the other, across back. It is best to measure shoulders of your existing jacket.
Sleeves
Place tape where sleeve joins body of coat and measure to length desired. Measuring sleeve length of your existing coat/jacket can help.
Chest
Measure around the fullest part of the chest (do not puff up chest).
Stomach
Measure around the widest part of the Stomach.
Pants Length
Measure the length from the waist to the floor or the length you want, you should measure the length while wearing you shoes. Measuring outer length of your existing pants can help, you should measure it from the top of the waist band to the leg bottom or the length you want.
Waist
Measure the waist area where you want to wear your Jeans. Make sure the tape is snug, but not pulling tightly, and not too loose. Do NOT mention your label size, measure your waist according to the instructions above.
Seat
Seat is the widest part of your hips. Keep the measuring tape here and the area which gives the maximum measurement is the "SEAT" required.
Thighs
Determine the widest part of your thigh and measure according to the picture.
Knee
Measure around your knee cap, snug, with room for one finger.