Fully waterproof - 5000mm Hydrostatic Head and fully taped seamsPremium Oxford Polyester fabricTunnel construction, attaches on the side of your tentQuick to pitch - Inflates in minutes and deflates in secondsSeparate groundsheetSpacious - Excellent headroomSecure - Adjustable pegging points for a secure holdLarge windowsFire retardant - Tested to the BS EN 5912 standardTransportable - Includes a carry bagFor use with the Hi-Gear Horizon 400 & 700 Air Tents