Answer (1 of 2): Underwire bras have rigid material embedded in the seams of the bra along the joint of cups to the wrapping portion of the bra. They provide proper shape to the dress that you wear, the boobs do not look saggy if the bra size is proper. Sometimes they are not comfortable to wear
2 Pack Wireless Push Up Bra – René Rofé
Shea Novelty White Wireless Push Up, 32A-38D
The Big Difference Between A Push-Up Bra And A T-Shirt Bra
The 13 Best Push-Up Bras of 2024
b.tempt'd Tied in Dots Wirefree Push, up Bra
Push-Up vs. Plunge: What's the Difference? - Forever Yours Lingerie
Deep V Backless Push Up Bra With Low Back Converter
ESPRIT - Wireless Push-Up Lace Bra at our online shop
The Battle of Comfort and Support: Wireless Push-Up Bra vs. Underwire