Low-hardness rubber: strengthen the ice and snow grip;
High-density wavy groove: provide closer ice contact, improve the grip on ice, snow and slick roads;
High-density wavy grooves

Outer tread: remove ice / snow water faster and provide better grip;
Inner tread: provide broader ground contact and stronger grip on ice

Serrated groove wall: hold snow more tightly and improve the grip; serrated groove wall

Spoiler valve at the bottom of groove: disturb the high-pressure air flow in the patterned groove and reduce the wind noise