We don't often issue ultimatums, but this glamorous piece is an absolute must-have. With its classic thong silhouette, divine sheer mesh back panel with delicate gathering, and decadent silk satin finish, this sophisticated bottom is the perfect balance of fabulous and wearable. It's the kind of stunner every woman should have in her lingerie drawer.

• Silk satin front
• Stretch mesh back
• Ruched back detail