Product Info Unparalleled Durability. As opposed to traditional rubber resistance tubing, XD™ Kevlar® CoverCords™ are made with a special Kevlar®/ Nylon sheathing that provides three huge benefits: Built-in stretch limit where the user cannot overstretch the rubber tubing inside. Ultimate protection for the user. If the tubing inside the sheath were to ever become compromised the breakage would be contained by the ultra-durable sheath. Superior product longevity. The sheath protects the inner tubing from the elements that cause rubber to wear outand break over time. No need to replace these year-after-year. 5 Levels of Resistance available for users of all levels. Each resistance level is silicone labeled with color for easy permanent identification. Cords are made with high-quality rubber over-molded handles for superior grip and comfort. Full set includes one of each resistance levels (X-Light to X-Heavy) Kevlar® is a registered trademark of E. I. du Pont de Nemours and Company used under license by XD Fit™.
