The Boundless™ Backless Brief is an ultra-comfortable harness fashioned like a risqué backless brief with powerful performance and comfort in mind. This bold harness has an extra-wide waistband, soft stretchy fabric and reinforced O-ring for the ultimate support. The durable, reinforced O-ring stretches to accommodate your favorite packer, vibrator or dildo. With a form-fitting design, this comfort harness can be worn discreetly under clothes. Enjoy pleasure made for two with the double panel interior for easy access to your favorite probe.Beginners and expert users alike will love frustration-free pleasure with this easy-to-wear harness. Simply secure your favorite probe, slip into the bold backless brief and dive deep into passionate penetration or enjoy comfortable all-day wear. Enjoy easy clean up by machine washing and hanging to dry. Size Small to Medium - Diameter: 13"