Nomad 6 Footprint Sierra Designs Footprints are made of 68D polyester taffeta (1800mm PU/WR/FR) and provide a perfectly sized protective tarp to utilize beneath Sierra Designs' tents to reduce wear and tear on the tent floor. Materials Fabric: 68D Polyester Tafetta, WR/PU1800mm, FR CPAI84 Tech Specs Weight: 15.5 oz / 439g Dimensions: 114.5" x 104.3" / 290.83 cm x 264.92 cm