The Backcountry Ergo is designed specifically for trail running where the poles need to adapt to the unique stresses of extra momentum and speed. Aluminum alloy construction delivers the right levels of sturdiness, strength and durability. The articulated handle is designed to help with forward thrust and to off-load weight while moving quickly. The wrist straps are easy to adjust while moving and are differentiated for right and left hands for optimal comfort. the exclusive Dart Baskets feature an innovative design that provides extra stability around the tip for uneven rocks. The lower segment is graduated to make it easy to set the correct length. Carbide tips for the best traction and durability. Articulated handle with ergonomic grip helps forward thrust and offloading weight Telescoping 3-segment aluminum alloy construction is sturdy and durable Reduced top segment to shave weight Easy adjust wrist loops are differentiated for right and left hands for optimal c