The Element SLR Bivvy from Prologic is a quality bivvy with unique design. This bivvy is characterized by the SLR (Spring Loaded Reflex) system. This makes the bivvy super fast to assemble and disassemble. The roomy design has steep walls creating lots of interior space. For example, there is room in the back of the bivvy for a stretcher and in the front for other gear. The front of the bivvy is completely removable. In addition, the bivvy features Pro-Vent 360 degree ventilation, each side features camo mesh panels. Comes with a sturdy, zip-in groundsheet.