Scott's Series 4 World Cup SL Ski Poles are the real racing deal with ultra-durable S4 aluminum alloy shafts and molded Notch Strike grip. Scott uses wind tunnel technology to design the Aero SG Baskets on the World Cup SL poles which minimize drag. Scott's S4 aluminum shafts are featuring a distinct dual taper design ("swaging") that reduces the outside diameter while increasing the shaft thickness for enhanced durability. Beneath it all is a lightweight, diamond-shaped ice tip for exceptional hold in slick conditions.