The Douglas Touring A/S 235/55R17 99W All-Season Tire offers an all-season silica tread compound that balances wet traction, dry traction and treadwear. The diagonal siped tread blocks are designed to help offer all-season traction in wet and dry conditions. The broad circumferential grooves help evacuate water and slush from the tread for enhanced grip. The sturdy shoulder blocks help provide confident handling.