The Twist Four S VL+ is the small version of ALPINA's top seller - specially shaped for narrow faces. It is characterised not only by its narrow shape, but also by shorter temples. Like the nose pads, these are finely adjustable and therefore guarantee a perfect fit. The Varioflex disc automatically adapts to the lighting conditions via three protection levels and always remains fog-free thanks to Fogstop. Protection level: S1-3
Strongly curved discs surround the face optimally. They protect the eyes from draughts and cold and improve vision. The indirect airflow prevents fogging of the lenses.
2 Component Design
The combination of hard frame, soft temple ends and nose pads increases wearing comfort and fit of the glasses.
Twist Fit Nose
Nose pads, which can be rotated steplessly via a grid, adapt individually to each nose shape.
A bow joint adjustable in inclination optimizes the adjustment. The tilting of the glasses towards the forehead ensures freedom from draughts. Tilting away from the forehead causes more ventilation and prevents fogging of the lenses.
Women or adolescents often have a very narrow face. Alpina also has the right sports sunglasses for these customers.
Varioflex is a lens technology in which the lenses adapt automatically to the weather. The self-tinting (photochromic) lenses react either to UV light (for glasses with protection level S 1-3) or to visible light (S 1-4). When irradiated, chemical elements open and produce a flat, darkening effect. If the light intensity decreases, the chemical elements close and the panes become brighter again. This process takes place in a matter of seconds. So they have glasses, which adapt themselves to the constantly changing light conditions.
Fogstop is a coating on the inside of the lenses that is not smooth but rough. This means that the drops have no possibility to form a closed layer, i.e. to fog up and thus obscure the view.