The LATITUDE X-ICE - XI2 From MICHELIN

A wide tread contact patch generates acceleration and braking power, as well as cornering traction, for outstanding winter manoeuvering. The special Flex Ice™ compound is formulated to maintain its flexibility under the most extreme cold weather conditions, including snow, slush, ice, wet and dry.

Cross Z-Sipes™ Technology uses a special 3-D design that locks the sipes in place.  Combined with micro-pumps, they provide improved stability in all winter conditions.  And because the sipes and micro-pumps are full-depth, their grip lasts winter after winter.