BUT , I 've heard that in fact not only is the shell the same .
The liner is too , and the only difference between the half sizes is that the ' smaller ' size simply has a thicker footbed to take up volume .
BUT , I 've heard that in fact not only is the shell the same , but the liner is too , and the only difference between the half sizes is that the ' smaller ' size simply has a thicker footbed to take up volume .