The Mad Rock Drone D2.One High Volume is the most adaptable and performance-driven shoe in the Drone family lineup. Designed as a hybrid of the Drone 2 and Drone CS models, it blends aggressive power with versatile comfort-ideal for sport climbing, bouldering, and technical face routes. This high-volume version features Mad Rock&';s patented Concave Sole for unmatched toe power and edging precision, while the 3D expandable molded heel, constructed with climbing-grade rubber, ensures a secure fit for dynamic heel hooks. The ArchFlex system supports natural arch movement and enhances muscle activation, while a stretchy, breathable tongue provides comfort and ventilation during extended climbs. Built with performance and ethics in mind, the D2.One is 100% vegan-friendly. Features: Hybrid Performance Design - Merges power and comfort by combining features from the Drone 2 and Drone CS. Patented Concave Sole - Delivers powerful toe engagement and precision for technical climbing. High Volume Fit - Ideal for climbers with wider feet or those seeking a roomier fit without sacrificing performance. ArchFlex Technology - Enhances fit, arch support, and muscle efficiency on challenging routes. 3D Molded Heel - Expandable heel design made with climbing-grade rubber for secure and versatile heel hooks. Breathable Stretch Tongue - Offers comfort and airflow for long climbing sessions. Vegan-Friendly Construction - Manufactured with 100% animal-free materials.