The S/PRO 100 is replacing one of the bestselling boots of the last decade, and building on it too. Custom Shell HD is a faster and more effective way of custom moulding a shell to improve the fit; the new pre-formed seamless liner is warmer, lighter and more comfortable, and ready to be heat moulded during fitting. The whole boot is lighter due to the Coreframe construction that places a stiff frame close to the foot so theres no loss of power. The Sense Amplifier on the cuff creates a more progressive flex and increases the rebound.
