ION Wing / SUP Board Leash Core Coiled Knee 2026ION's Wing SUP Leash Core Coiled Knee delivers comfort, reliability, and the benefits of a coiled design. Available in 8'10", its durable 7mm urethane cord is built for wing foiling and stand up paddeling. The coil stays clear of the water to reduce drag and tangling, while stainless steel swivels prevent twists. A fixed leash plug loop ensures a solid connection, a triple wrapped rail protector shields your tail, and the neoprene knee cuff with flex
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