Winter wiper blades are specially designed wiper blades that work to clear your windshield better in snow and icy conditions.
All modern windshields are curved for aerodynamics and aesthetic reasons. And there are no real "flat spots". So as the wipers are moved across the asymmetric curvature of the windshield the frames holding the rubber blades against the windshield must continuously adjust to keep the rubber properly pressed against the entire length of the contact line to give an even wipe.
Traditional wiper blade frames have several "hinge" points that keep pressure on about 6 pressure points for the rubber blade to give an even wipe across your windshield in warm rainy conditions. But during cold weather those "hinge" points easily freeze up and your rubber blade can no longer be evenly pressed or conform to the shape of your windshield as the blade is moved across it.
So designers originally created "boots" or rubber coverings that encased the traditional wipers "hinge" points to try and prevent them from getting filled with water and freezing. But these were a flawed design
Modern "All Weather" wipers are called "Beam Blades". They are a significant advancement to the old traditional metal frame wiper blades of yesteryear. Beam blades used a new technology called "Memory Steel". This is accomplished using a lightweight, solid-state shape-memory alloy as alternative to conventional steel construction.
Which allows Beam Blades to:
There is really a 4 fold benefit to using beam blade wipers instead of winter wipers.