Expedition tough but suitable for everday use the Leki Super Makalu Ergometric AS trekking poles will have you feeling more like a mountain goat than a declining alpine wanderer. These trekking poles are loaded with beneficial features. The top of the shaft underneath the grip is set at a 10º positive angle placing the wrist in a neutral position considered the most effective for absorbing repeated impact. The AirERGO Foam ergometric grip is lightweight and designed for comfort in both warm and cold conditions and includes adjustable Auto Comfort Straps that releases the hand given an awkward situation. When rapidly descending scree or traversing a tricky boulder field the shafts take constant punishment. That's why Leki uses heat-treated 7075 aluminum and flextips that bend to an amazing 30º to stand-up to this beating. Additionally special attention is paid to sealing the graphics assuring a durable finish for rigorous use. Attention to detail is not only focused on the exterior of the shaft. The interior of all Leki trekking poles is textured so the length adjustment expansion plugs part of the Super Lock System (SAS) get a solid grip. The Leki Super Makalu Ergometric AS trekking poles also include the Soft Antishock System (SAS) a shock absorbing assembly housed inside the shafts for reduced stress on ligaments joints and muscles. This system also features a simple press and twist on / off mechanism with visible indicator for easy use. The Leki Super Makalu Ergometric AS hiking poles come wth interchangeable trekking baskets. They easily screw on and off for installation of snow baskets as conditions dictate.