FISCHER RC4 130 MV Boa Vac GW - Alpine BootsRC4 MV represents the next generation of high performance ski boots. The RC4 130 MV is designed to allow skiers to push their limits and raise the level of their skiing. Adjustable VACUUM shell plus iFZ Performance liner tensioned with BOA H+i1 Fit System guarantee a micro adjustable precision fit that accomodates a wide range of foot shapes. GripWalk sole included to master all conditions.