Sonik SK-Tek Euro Bivvy, The Sonik SK-Tek Euro Bivvy features a 10,000mm HH 210 PU backed polyester Flat back, steep sided rectangular footprint to maximize internal space. Two-way letterbox door with green clear and mozzi door panels and sturdy, lightweight four-section 19mm 6061 aluminium poles. The rear vent can be opened from inside the bivvy. Tuff-lite Zip in groundsheet with central corridor mat. Velcro rod retainers and roll back open front option. Large peak for doorway protection. Large front ventilation options. Supplied with oversize carry bag and heavy-duty T-Pegs.