The solid batwing maxi dress lists exactly the same waist and hip number in every L–3XL row. That pattern is worth checking on the actual draped garment before interpreting it as a fitted waist or a straight side seam.

Read the five measures together

L lists length 135, bust 128, sleeve 47, waist 112 and hip 112 cm. XL is 136/132/48/116/116, 2XL 137/136/49/120/120, and 3XL 138/140/50/124/124. Across three steps, bust, waist and hip each gain 12 cm; sleeve and length each gain 3 cm. The equality of waist and hip is in the table, but the source does not say where those lines cross the flowing fabric or whether numbers are body guidance.

Locate the drape on a garment you own

Compare a maxi with a similar loose upper body. Mark its bust, natural waist, widest hip and hem. Ask for the finished dress laid flat with those locations identified in a photograph; request both flat widths and the method used to turn them into chart values. If the fabric gathers under the batwing sleeve, a measurement at one seam may not represent the room at another height. Avoid choosing a size from the matching waist/hip figures alone.

Check the exposed side and sleeve

Ask which shoulder is uncovered, where the 47–50 cm sleeve length begins, and how large the arm opening is. Compare the shoulder and arm coverage you prefer in front, side and back views. Yellow, Black and Orange are offered. The source states 95% polyester but does not identify the remaining 5%, lining or stretch, so those require confirmation if material behavior matters.