Wenzel Aspen Trail 11- by 15-Foot, 5 Person Family Pentadome with Screen Porch Weather armor polyester fabric gives tremendous reliability and toughness and is enhanced with an additional polyurethane coating Armor tough seams throughout the body of the tent, our sewing technique incorporates double stitched, lap-feld seams that provide a stronger shingle effect against water. Weather Armor details have all threads, zippers and webbing treated with superior water repellency applications to enforce these critical areas Rain Shingle - our rain shingle layer on the lower portion of the tent wall provides a water shed effect Sonic sealed floors are welded, not sewn, therefore eliminating stitching and needle holes that create another potential area for water to penetrate