Short answer
Asymmetric hip drafting — bespoke corrects the body you have, not the average.
Why it happens
Single-side hip prominence.
Why ready-to-wear cannot fix it
Size charts grade uniformly; prominent back hip is a personal geometry. A block adjusted in one place pulls in another — which is why the correction must exist in the pattern, not in the fitting-room mirror.
How the house drafts for it
Asymmetric hip drafting — bespoke corrects the body you have, not the average. The correction is recorded in your Fit Passport, so every later commission starts from it automatically.
Where it matters most
This correction carries most for: trousers, suit. It is reviewed at every fitting, in every city, for every garment.
Fit Library entry 25 of 48 · Reviewed by Bonturberg Editorial Review · 2026-09-08