The Lilycurve strapless bra features an innovative dual front-buckle design with patented anti-slip technology. Bio-Grip fabric grips firmer as you move — the more you sweat, the better it stays. Key Features: Patented Anti-Slip Technology — Bio-Grip fabric with "Sweat-Adaptive" material ensures a secure, slip-free fit all day 360-Degree Support — 1+3 side-boning strips near the underarms prevent shifting when you raise your arms; adjustable under-bust band anchors the bra Heart-Shaped Push-Up Cups — 5-layer composite pressure sponge provides perfect lift while remaining breathable and lightweight; dual front buckles offer 3-level adjustable cleavage Seamless Edge Technology — One-piece hydraulic bonding for a smooth "no-show" look under tight clothing; deep-V butterfly cut stays hidden under strappy tops Multi-Way Wear — Includes free detachable straps; switch between strapless, classic, or halter styles