The Mastercraft Glacier MSR Tire offers confidence and control during winter season driving. This tire features a unique winter tread compound that provides balanced grip on dry, wet, and snowy surfaces. It also delivers the strength, durability and control you expect from a Mastercraft truck and SUV tire. All Glacier MSR tires are server-weather rated and backed by a 45-day road test warranty for assurance that this product will perform in the cold.