225/50R17 98H Sailun Ice Blazer WST1 Tire The Ice Blazer WST1 is a studdable winter tire designed for drivers that demand maximum traction in severe weather conditions, letting you outperform the elements, so you can get more out of your winter. Compound recipe:  Green technology: Extensive use of enviro-friendly materials that meet European REACH requirements. Specially formulated compound and polymer blends keep the rubber flexible for maximum performance in extreme temperatures improving safety and handling in Northern winter conditions, designated with the Severe Service Emblem. Specially blended Silica-Reinforced Formula for excellent grip performance in low temperatures.