How Can a Brand Specify Cup Shape Without Underwire?

Underwire-free shaping can use seams, molded components, layering, and controlled fabric restraint.

Sports bra support depends on the complete structure, including cups, underband, straps, fabric resistance, and pattern fit. A single component or fiber percentage cannot establish the support level; evaluate representative garments on the intended wearer group during the relevant activities before final approval. Validate volume and containment on wearers.