Proxes St Iii. Street/Sport Truck All-Season Tire The Proxes ST III is the perfect balance of dynamic looks and sport-oriented performance for trucks and SUVs. With a wider tread and a silica-based tread compound, the Proxes ST III stops up to 6 feet shorter in wet conditions* while providing superb handling, excellent all-season performance, consistent wear, and a smooth, quiet ride backed by a 40,000-mile warranty. *By request/order.