What's the Difference Between T-Shirt Bras & Full Coverage Bras?

Key Takeaways A T-shirt bra uses seamless, molded memory foam cups for a smooth, invisible look under fitted, sheer, or light-colored tops. A full coverage bra envelops the whole breast with fuller cups, a higher neckline, and wider straps to reduce bounce and spillage. Support comes from the band, underwire, cup construction, and fit, so a well-fitted T-shirt bra can still support a fuller bust.