The RC4 120 LV is a high performance VACUUM fit boot with a secure, narrow fit for performance-oriented skiers with narrow feet looking for maximum performance. The aggressiveness can be tuned with forward-lean adjustment. The same iFZ Performance liner as found in the 130 flex model means skiers can opt for this softer model without compromising liner performance. GripWalk® makes time in the boot more enjoyable and your perfect companion for the whole winter