Bottes de Ski Pure Pro Heat Femme Size:22.5 LINING: The Ionic+™ Antimicrobial liner 251978 BLBL 115 LINING: The Ionic+™ Antimicrobial liner is sweat activated Mountain biking has evolved considerably in recent years and bikes now offer access to every type of terrain and style of riding • Women's specific regular fit features a 100mm last for recreational skiing and all day comfort • Therm ic boot heater technology is integrated into the liners for all day comfort and warmth at the touch of a button or via Bluetooth with your smartphone • Data driven Generative Design minimizes boot wall thickness for the most effective use of material to reduce weight and enhance power transfer • Dual Core technology provides targeted power transmission and shell wrapping response and control • Asymmetric Dual Core Cuff combines softer plastic to wrap the lower leg with harder plastic where needed for support and power transmission for optimized performance and fit • A simple rear spine adjustment provides an adjustable flex range of +5 to 5 for customized power