Osmo high performance ripstop polynylon fabric provides 4x more water repellent and 3x less stretch when wet. Osmo fabric is made from 100% recycled yarns that are PFAS free and meet flame retardant standards without the use of chemicals added. Large doors and vestibules provide enough coverage for every person. Patent pending flybar volumizer clip adds more room to the head and distributes fly tension evenly. (3P does not include Flybar) Volumizing guy ropes connect the inner tent to the rain, pulling the side walls of the inner tent outwards to create a more lively space. Attach the tent door with one hand with the built-in gate keeper clips.