Relationship between shape and use
A glop cup is a moulded cup selected to support the bust line in eveningwear, bustier and lingerie patterns. This definition explains not only the appearance of the component but also its function within the garment. Suitability should be assessed according to the intended style, material and application method.
In cup and glop selection, the size label alone is not sufficient. The breast base, cup depth, upper-edge opening, shell-fabric stretch and garment construction should be considered together. The same size name may not provide the same fit in different patterns; testing on the actual style is therefore necessary. These factors should be assessed separately when considering what a glop cup is.
Points to consider when selecting a model
On the sample, compare the cup with the base line of the pattern; check for gaping, creasing at the upper edge or tension in the shell fabric. The right and left components must have the same shape and should not be crushed during storage and sewing. A change in fabric or pattern may require the cup selection to be tested again. Criteria for glop cups should be set before sampling.
During an order discussion, giving only the style name for a glop cup may be insufficient. For the technical team, the location of use, shell fabric, pattern information and expected result are more descriptive. If an existing sample is available, the ways in which the new development will be the same or different should also be stated.
From sampling to bulk production
The main criterion in this subject is not how the supporting component looks by itself, but how it performs with the finished garment. When assessing glop cups, record the result on the sample. Comparing subsequent batches against the same reference enables dimensions, shape and application decisions to be managed more consistently.
Once bulk production begins, assess the first components produced side by side with the sample for glop cups. The purpose is not limited to finding defects; it is to confirm that the shape, dimensions and application direction are repeated. Inspection frequency should be planned according to the product structure and production flow.
The outcome of testing glop cups should be recorded with brief, measurable notes. Rather than a general statement such as “suitable,” record the fabric, pattern and application direction for which approval was given. This record reduces the risk of selecting the wrong component or a different application method for repeat orders.