HR Second stage - XR Line

Mares HR Second Stage – XR Line – Precision Breathing for Technical Divers

The Mares HR Second Stage – XR Line delivers exceptional breathing performance and reliability for advanced and technical divers. Designed to handle the most demanding dive environments, it combines adjustable airflow control, VAD technology, and the rugged engineering of the XR Line for smooth, effortless breathing in any condition.

• Adjustable Breathing Resistance – Fine-tune your breathing effort for maximum comfort and control at any depth.
• VAD (Vortex Assisted Design) – Promotes natural airflow and prevents free-flow, even in cold or turbulent water.
• Durable XR Line Construction – Built from corrosion-resistant marine-grade materials for long-lasting reliability.
• Compact and Streamlined Design – Ideal for technical, sidemount, and backmount configurations with optimized hose routing.
• Perfect Match for XR First Stages – Designed to pair seamlessly with the Mares 26XR and 28XR first stages for professional performance.

Rugged, precise, and efficient — the Mares HR Second Stage (XR Line) sets the standard for technical diving performance. Available now at Scuba School of America.