Atomic Redster S9 Carbon sits with the S9 Gen S as one of Atomic's pinnacle racing models for skating – the weapon of choice for our world cup pros when a course demands all-out speed. Its unique construction balances thickness and density in different areas of the ski to ramp up your acceleration and power return. The Innowave Core, with its unique wave pattern, is strong and light for a dynamic rebound. With a more parallel sidecut for extra stability at speed, you can really push your limits – while a shorter, flatter and lighter ski tip enhances your swing balance and fluidity, and the BI 6000 sintered world cup base is tuned with world cup grinding.