20000mm HH Hydra-Tex? material High performance 2 rib structure?Optimal foot-print / inner space ratio Peak system Zip-out front 2-?way door construction with 3 door options (clear, green, mozzy) Long-?life HD PVC groundsheet Large vents protected by anti-leak storm?baffles High performance zips Taped seams Heavy duty pegs Comes in a?heavy duty zip bag The best just got better! The Extreme TX Bivvy represents the next?generation of our legendary TX Shelters, offering best in class quality?and superb protection against the elements. The zip off front panel can?be adjusted to three different door settings which allow for a change in?wind direction without moving the entire bivvy. The large front and rear?vents along with the PVC door and window panels also makes this bivvy?very adaptable to the different weather conditions anglers face.