Maxim's Apex 9.9mm rope is designed to provide optimum life safety while permitting the climber to push past his or her personal limits. The Apex series offers excellent durability with extreme fall protection. Designed to be pushed everyday, Apex ropes provide the long life and safety assurance you have come to expect from MAXIM Dynamic Ropes. All Maxim ropes have Endura dry treated cores. This style has a Double Dry (2x) treatment where the cover is coated with Endura Dry Treatment as well as the core for the ultimate in dry protection.