The Atomic Redster WC 170 Lifted is the fastest ski boot we make. Supremely powerful and responsive, it’s co-developed with (and worn by) Atomic’s top athletes like Marcel Hirscher and Mikaela Shiffrin. The 95mm racing last gives you an authentic race-room fit and super-precise foot hold. The ultra-stiff Carbon Spine and 170 flex provides explosive power transmission and superb edge grip, while still giving you great feel in the front of the boot. But it’s not just powerful – it’s also individually tunable, with a Rotational Cuff, Micro Cuff Alignment and unique Memory Fit that combine to give you a completely personalized set up. And with the three interchangeable Flex Frames on offer you can adjust the sensitivity of the sole to your discipline, style and physique. A precision-made, highly technical custom ski boot for the world’s fastest skiers. With its Injected Lift, you’ll need an authorized Atomic Dealer to bring the boot back to DIN standard.