Offering excellent hand and a suppleness similar to that of lighter diameter ropes, the Xion 10.1mm Climbing Rope is Petzl's toughest all-around rope. Extra durable, its 10.1 mm diameter features 22% more sheath by weight than comparable ropes in the Petzl lineup. The XION is great for those who want the increased longevity of a larger-diameter rope without sacrificing ease of handling. A Duratec Dry treatment helps prevent the rope from absorbing water, which can weaken a rope and make it difficult to handle in freezing conditions. Before a Petzl rope is constructed, the core and sheath strands are individually treated, providing water repellencty in case you find yourself in a deluge, snowfield or on a dripping ice chandelier.