With its 106mm waist Salomon's S/Lab QST Echo is a touring-specific evolution of Salomon's iconic QST 106. Featuring a karuba/poplar core, superlight basalt fibers, and a cork damplifier, it’s a lightweight, lively backcountry ski perfect for all conditions. Best for Freeride, Advanced, Expert Full Sandwich Sidewalls guarantees stability and precision, it enhances performance by providing good edge grip and smooth ski-to-snow contact. 100% Recycled Double Sidewalls Woodcore is a mix between poplar and karuba. Karuba offers lightweight and inertia. A titanal insert edge-to-edge underfoot, running throughout the ski, for maximal power and increased hard snow edging. Cork Damplifier: Cork is three times more absorbing than Koroyd. Using it in the tip of the ski enables a high level of vibration absorption and dampening with even less weight.