Updated for 2014! Combining lightweight design with features like antishock, advanced locking mechanisms and extended ergonomic grips, LEKI's Thermolite XL Antishock trekking poles offer support and durability at a weight of only 17.6 ounces per pair. Thermolite XL Antishock trekking poles feature LEKI's Soft Antishock Lite System (SLS) that reduces stress on the joints, muscles and ligaments. The combination of internal steel springs and elastomer creates a smooth and unique suspension system that is quieter and reduces shock more effectively than other designs. LEKI places the absorption system closer to the point of impact by embedding it inside the shafts of the lower pole sections, keeping the springs cleaner and requiring less maintenance. The perfect ultra-light pole for all dedicated trekkers.