- ZIGZAG CIRCUMFERENTIAL GROOVES - PROVIDE EXCELLENT WATER EVACUATION AND SNOW TRACTION - CONTINUOUS LARGE SHOULDER BLOCKS - FOR OUTSTANDING CORNERING GRIP AND A QUIET RIDE - MULTIPLE CROSS GROOVE AND SIPES - FOR "BITING" TRACTION THAT GRABS THE SNOW AND CUTS THROUGH WATER TO GIVE IMPROVED GRIP ON ICE AND WET SURFACES - CONTINUOUS CENTER RIB BLOCKS - TIED TOGETHER TO PROVIDE GREATER STRENGTH, LESS UNEVEN WEAR, AND IMPROVE ON-CENTER FEEL - CONSTANT CONTACT DESIGN - TREAD ALWAYS UNIFORMLY IN CONTACT WITH THE ROAD TO GIVE THE BEST POSSIBLE TRACTION WHILE ENSURING THE LONGEST MILEAGE