[oiuygtfrtghyju]

So abandon actual inches and just do small/medium/large.

But then just like Pizza went from SML -> L/XL/XXL without physically changing then clothes will do the opposite.

S/M/L will become "Normal/Small/Thin" -> "Thin/looking good/petite" -> "Petite/elfin/starving" .....

[mahmud]

Actually, I do see a correlation between pizza size and pant-waist size.

[scott_s]

Our bodies are too varied for three gradations to work with any clothing that does not have elastic. And even the most casual of pants - jeans - have measurements in two dimensions.