100% Neoprene NOTE: The NATURAL is a WHITE leash, the SMOKE is a BLACK Leash. Naturally sourced, corn-based Bio-Resin construction results in a lighter & stronger cord. Inner Helix straightens under load to absorb shock & amplify strength. Helix’s textured cord surface creates smoother water flow resulting in less drag. Silicone Grip Print - Reduces slipping around ankle. The Freedom Helix creates the perfect blend of weightlessness, strength and sustainability in a leash that’s one of a kind. Featuring a cord made from natural bio-resin, the Helix ups the performance levels by being lighter and faster than anything you’ve experienced. New Helix Cord: Naturally sourced, corn-based Bio-Resin construction results in a lighter & stronger cord. Inner Helix straightens under load to absorb shock & amplify strength. Helix’s textured cord surface creates smoother water flow resulting in less drag. Lightweight Cuff: Silicone Grip Print - Reduces slipping around ankle. 2mm Neoprene Padding - Thin, light and comfortable. Low Profile Molded Velcro - Stronger & more reliable. Molded Pull-tab - New finger grip designed for quick release. Strong Connections: Helix Overmold - Maximizes strength while providing stretch when strained. Reinforced Horn - Elongated & comfortable horn reduces back foot tangling. Slim Railsaver - Made with Hypalon and molded Velcro for extra strength Titanium Swivels - Super durable, light & corrosion resistant.