Lifeline essential armour commuter tyres combine the highest level of puncture protection with excellent speed and handling characteristics to excel on your daily urban commute the tyre also boasts a reflective strip on the side wall for improved night time visibility effective puncture protection a 5mm high elasticity compound rubber breaker sits beneath the tread to shield the inner tube from sharp objects such as glass shards thorns and other road debris in the event that the tread is pie