This bivvy is made from aquatexx which is the ultimate in bivvy material, very strong indeed and which around 40 percent stronger and durable then conventional nylon fabrics. This means that the material will not expand and shrink in any weather condition. There is a front porch feature to stop the rain getting on the inside groundsheet which allows the angler to fish inside the bivvy allowing them to stay dry. The angler can spend more time fishing because erecting the armadillo bivvy is very easy indeed.