- M S rated - Stylish white sidewall - High UTQG ratings - M S (mud and snow) rated for year-round traction in all weather conditions, including light snow and rain. - Four circumferential grooves channel away water on wet roads for traction you can count on. - The UN101 has a 440 UTQG tread-wear grade and a grade A in traction high ratings available at a comfortable price point. Plus, the white sidewall band lets your car stand out from the crowd.