The piece is made with a fabric of 73.7% nylon and 26.3% spandex, a blend that gives it a soft, thin, seamless feel suited to the summer push-up, cleavage-enhancing, side-smoothing and anti-sagging design. The cups and side wings share the same 73.7% nylon and 26.3% spandex composition, and the cup outer layer is finished with lace for a light, seamless look. The matching brief uses a 70.8% nylon and 29.2% spandex fabric, with a 100% cotton gusset. The piece has a 7-part softness and 3-part stretch balance, a 1 cm adjustable strap, a four-row, three-hook back closure, and a half-fixed cup pad that is 1.4 cm at its thickest and 0.1 cm at its thinnest. The breathable grid texture with three-dimensional air holes supports air circulation, and the piece is treated for antibacterial performance that remains effective after 300 washes.