Atomic Redster S5 The Atomic Redster S5 is ideal for those looking for a powerful but easy to control ski. It features a lightweight Ultra High Densolite core with carbon laminates that make the ski super lively and agile. Equipped with a sintered base, race grinding and Redster profile, this ski offers a dynamic kick and a long, fast planing phase. With the Easy Edge Sidecut and two grooves in the base, it is easy to control even when using a lot of force. The ski also has a bonded plate binding system that makes it particularly precise and offers super efficient power transmission. The Redster S5 ensures speed and cross-country skiing fun!