Shell fabric & support materials
This structured cup reference is intended for discussions about underwire swimwear development. Shell fabric, lining and support components need to work together around the cup and band. Share the intended fit, fabric direction and size range so the material combination can be assessed against your construction requirements.
Cup shape & adjustable straps
The sample brief should define cup proportions, support expectations, strap arrangement and garment measurements. Adjustable straps also require decisions about strap width, adjustment hardware and secure attachment. These choices affect the fit and should be reviewed alongside the underwire position and internal finishing.
Development checkpoints
Use TF-S03 when sending sketches and your size chart. Review cup shape, band tension, strap adjustment and lining on the sample. Construction details are agreed through development; the reference image alone does not establish a support rating or fixed cup specification.
