Designed with an aggressive unidirectional tread pattern for superior performance in extreme snow and ice conditions, the Toyo OBSERVE G-02 plus winter tire technology was specifically built to handle Canada's most brutal winters. Features: -Lamella crystals, called Fraipontite, help "vaccuum" away moisture from under the footprint allowing better direct contact between the tread compound and the road surface. -Silica in the tread compound helps rubber retain it's softness in low temperature conditions and resists hardening with age. -Improved Microbit Technology with the larger walnut shell particle, increases traction and braking on compacted snow and ice. -Increased sipe density further improves water evacuation resulting in improved levels of ice traction.