FISCHER RC4 105 MV Boa Vac GW Women - Alpine BootsRC4 105 MV BOA is an outstanding, high performance boot that offers a customizable VACUUM shell for ladies looking for a comfortable fit. The new BOA H+i1 Fit System wraps the shell to every foot shape and the women's specific iFZ Performance liner guarantees top performance at a playful 105 flex. The RC4 MV boots are developed with help of Fischer Scan Fit data, providing an optimal fit for most female skiers.