Special winter compound - multicell/foamy compound (also called "Nordic") rich with high distribution silica
Micro-pumps on tread blocks
Fully 3D zig-zag shaped sipes
More slope angle on outer side of groove walls
Bumps on groove walls
Center rib design features empty pitches, with long and narrow following wide and short
Wide circumferential and lateral grooves
Shoulder blocks feature w-shaped micro-grooves
Use of 9 different tread block shapes
Marked with Alpine Symbol
Benefits
To maintain elasticity and frictive qualities of tire tread in extremely low temperatures and guarantee consistent performance
For enhanced ice surface performance, eliminating slippery factor and improving grip
Improve wet asphalt traction
Help enhance rigidity of tread blocks and thus help to maintain maximum contact patch and to minimize shape twist of grooves for better water/slush evacuation
To improve cornering traction and stability
To disrupt air flow and reduce noise generation
Improving accelerating traction and reducing noise, and S-shaped sipe to enhance accelerating traction
Designed to evacuate water and slush efficiently
Increase responsiveness of tire while cornering, also being an addition to decorative pattern of shoulder outer wall