The T4 Plus/T8 Footprint provide an extra layer of protection for your tent. Made from a durable 300 denier Oxford weave polyester the T4 Plus/T8 footprint will help save wear and tear on your floor. The footprint is rated waterproof up to a 3000MM HH rating. The T4 Plus/T8 Footprint is designed to work with our T4 Plus and T8 models.