Measure from your underarm to your natural waist (narrowest part – above your naval). Then measure your waist to your hip bone. If the measurements are about the same, you're evenly proportioned. If the first measurement is smaller, then you're short waisted.

Do I have long or short torso?

Measure the distance between your waist and the bottom of your bum. Compare the measurements. If the two measurements aren't equal, you're either short- or long-waisted: If the first measurement is shorter, you're short-waisted. If the second measurement is shorter, you're long-waisted.

What size is a short torso?

In general, less than 18 inches is a small torso, 18 to 20 inches is a medium torso, and over 20 inches is a large torso.