Xcel Drylock Surf Boot Description Engineered for advanced 3D warmth and comfort, the Xcel Drylock Boot has been updated with a sleeker profile and reduced bulk while maintaining premium cold water performance. This 3-dimensional boot contours naturally to the foot while minimizing excess rubber on the sole, creating a true board feel with enhanced sensitivity and control. The combination of Thermo Dry Inferno (TDI) interior lining and Channel Flex exterior delivers exceptional warmth, flexibility, and comfort for long sessions in cold water. A Drylock cuff opening helps prevent water flushing, while the ergonomic support strap locks your heel securely in place and reduces pressure across the instep. The pull-up heel loop makes entry quick and easy, even on cold mornings before dawn patrol. Materials Channel Flex exterior for lightweight flexibility Thermo Dry Inferno (TDI) interior for premium warmth Features 3D ergonomic foot design Drylock ankle seal helps reduce water entry and flushing Pull-up heel loop for easy entry Ergonomic support strap for secure heel hold and comfort Fusion X seam tape for added durability and warmth Reduced bulk construction for improved board feel