The Attiva Vento and Modo models offer the calf adapter design. This is found in the upper collar of the
liners. It consists of softer material in a V cut shape on the upper sides allowing the liner collar to give and adapt to
various lower leg shapes.
New 3D construction in the collar of the Attiva Vento and Modo liners, further enhances the fit capabilities
of hard to fit calves. The collar is molded 3 dimensionally in a flared positon to increase room for the calf.